diff --git a/client/LICENCE b/LICENCE
similarity index 100%
rename from client/LICENCE
rename to LICENCE
diff --git a/client/MANIFEST.in b/MANIFEST.in
similarity index 100%
rename from client/MANIFEST.in
rename to MANIFEST.in
diff --git a/client/README b/README
similarity index 100%
rename from client/README
rename to README
diff --git a/client/RELEASE-NOTES b/RELEASE-NOTES
similarity index 100%
rename from client/RELEASE-NOTES
rename to RELEASE-NOTES
diff --git a/client/blocks b/blocks
similarity index 100%
rename from client/blocks
rename to blocks
diff --git a/client/bmp.py b/bmp.py
similarity index 90%
rename from client/bmp.py
rename to bmp.py
index bfdd165b..b4bd4102 100644
--- a/client/bmp.py
+++ b/bmp.py
@@ -193,7 +193,23 @@ class BitMap(object):
     f.close()
   
 
+def save_qrcode(qr, filename):
+    bitmap = BitMap( 35*8, 35*8 )
+    #print len(bitmap.bitarray)
+    bitmap.bitarray = []
+    k = 33
+    for r in range(35):
+        tmparray = [ 0 ] * 35*8
 
+        if 0 < r < 34:
+            for c in range(k):
+                if qr.isDark(r-1, c):
+                    tmparray[ (1+c)*8:(2+c)*8] = [1]*8
+
+        for i in range(8):
+            bitmap.bitarray.append( tmparray[:] )
+
+    bitmap.saveFile( filename )
 
   
     
diff --git a/client/docs/android.html b/docs/android.html
similarity index 100%
rename from client/docs/android.html
rename to docs/android.html
diff --git a/client/electrum b/electrum
similarity index 99%
rename from client/electrum
rename to electrum
index 011d56f2..e7f378d6 100755
--- a/client/electrum
+++ b/electrum
@@ -288,7 +288,7 @@ if __name__ == '__main__':
                     h = wallet.history.get(addr,[])
                     ni = no = 0
                     for item in h:
-                        if item['is_in']:  ni += 1
+                        if item['is_input']:  ni += 1
                         else:              no += 1
                     b = "%d %d %s"%(no, ni, str(Decimal(wallet.get_addr_balance(addr)[0])/100000000))
                 else: b=''
diff --git a/client/electrum4a.py b/electrum4a.py
similarity index 96%
rename from client/electrum4a.py
rename to electrum4a.py
index f2477644..513267b2 100755
--- a/client/electrum4a.py
+++ b/electrum4a.py
@@ -26,7 +26,7 @@ from wallet import format_satoshis
 from decimal import Decimal
 import mnemonic
 
-import datetime
+import datetime, re
 
 
 
@@ -606,6 +606,11 @@ def main_loop():
             elif out == "receive":
                 global receive_addr
                 receive_addr = select_from_addresses()
+                if receive_addr:
+                    amount = modal_input('Amount', 'Amount you want receive. ', '', "numberDecimal")
+                    if amount:
+                        receive_addr = 'bitcoin:%s?amount=%s'%(receive_addr, amount)
+
                 if not receive_addr:
                     out = None
 
@@ -656,9 +661,16 @@ def payto_loop():
                 code = droid.scanBarcode()
                 r = code.result
                 if r:
-                    addr = r['extras']['SCAN_RESULT']
-                    if addr:
-                        droid.fullSetProperty("recipient","text",addr)
+                    data = r['extras']['SCAN_RESULT']
+                    if data:
+                        if re.match('^bitcoin:', data):
+                            payto, amount, label, _, _, _, _ = wallet.parse_url(data, None, None)
+                            droid.fullSetProperty("recipient", "text",payto)
+                            droid.fullSetProperty("amount", "text", amount)
+                            droid.fullSetProperty("label", "text", label)
+                        else:
+                            droid.fullSetProperty("recipient", "text", data)
+
                     
         elif event["name"] in menu_commands:
             out = event["name"]
@@ -923,29 +935,16 @@ def make_bitmap(addr):
     # fixme: this is highly inefficient
     droid.dialogCreateSpinnerProgress("please wait")
     droid.dialogShow()
-    import pyqrnative, bmp
-    qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.H)
-    qr.addData(addr)
-    qr.make()
-    k = qr.getModuleCount()
-    bitmap = bmp.BitMap( 35*8, 35*8 )
-    print len(bitmap.bitarray)
-    bitmap.bitarray = []
-    assert k == 33
-
-    for r in range(35):
-        tmparray = [ 0 ] * 35*8
-
-        if 0 < r < 34:
-            for c in range(k):
-                if qr.isDark(r-1, c):
-                    tmparray[ (1+c)*8:(2+c)*8] = [1]*8
-
-        for i in range(8):
-            bitmap.bitarray.append( tmparray[:] )
-
-    bitmap.saveFile( "/sdcard/sl4a/qrcode.bmp" )
-    droid.dialogDismiss()
+    try:
+        import pyqrnative, bmp
+        qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.L)
+        qr.addData(addr)
+        qr.make()
+        k = qr.getModuleCount()
+        assert k == 33
+        bmp.save_qrcode(qr,"/sdcard/sl4a/qrcode.bmp")
+    finally:
+        droid.dialogDismiss()
 
         
 
diff --git a/client/electrum_text_320.png b/electrum_text_320.png
similarity index 100%
rename from client/electrum_text_320.png
rename to electrum_text_320.png
diff --git a/client/gui.py b/gui.py
similarity index 99%
rename from client/gui.py
rename to gui.py
index 77acdd1c..1703ddf3 100644
--- a/client/gui.py
+++ b/gui.py
@@ -328,9 +328,6 @@ def run_network_dialog( wallet, parent ):
     radio2 = gtk.RadioButton(radio1, "http")
     p_box.pack_start(radio2, True, True, 0)
     radio2.show()
-    radio3 = gtk.RadioButton(radio1, "native")
-    p_box.pack_start(radio3, True, True, 0)
-    radio3.show()
 
     def current_line():
         return unicode(host_entry.get_text()).split(':')
@@ -340,8 +337,6 @@ def run_network_dialog( wallet, parent ):
             radio1.set_active(1)
         elif protocol == 'h':
             radio2.set_active(1)
-        elif protocol == 'n':
-            radio3.set_active(1)
 
     def set_protocol(protocol):
         host = current_line()[0]
@@ -354,7 +349,6 @@ def run_network_dialog( wallet, parent ):
 
     radio1.connect("toggled", lambda x,y:set_protocol('t'), "radio button 1")
     radio2.connect("toggled", lambda x,y:set_protocol('h'), "radio button 1")
-    radio3.connect("toggled", lambda x,y:set_protocol('n'), "radio button 1")
         
     server_list = gtk.ListStore(str)
     for host in plist.keys():
diff --git a/client/gui_qt.py b/gui_qt.py
similarity index 94%
rename from client/gui_qt.py
rename to gui_qt.py
index 21f52d7c..67118007 100644
--- a/client/gui_qt.py
+++ b/gui_qt.py
@@ -96,11 +96,14 @@ class StatusBarButton(QPushButton):
 class QRCodeWidget(QWidget):
 
     def __init__(self, addr):
-        import pyqrnative
         super(QRCodeWidget, self).__init__()
-        self.addr = addr
         self.setGeometry(300, 300, 350, 350)
-        self.qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.H)
+        self.set_addr(addr)
+
+    def set_addr(self, addr):
+        import pyqrnative
+        self.addr = addr
+        self.qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.L)
         self.qr.addData(addr)
         self.qr.make()
         
@@ -527,7 +530,7 @@ class ElectrumWindow(QMainWindow):
             addr = unicode( i.text(0) )
             return addr
 
-        qrButton = EnterButton("QR",lambda: ElectrumWindow.showqrcode(get_addr(l)))
+        qrButton = EnterButton("QR",lambda: self.show_address_qrcode(get_addr(l)))
 
         def copy2clipboard(addr):
             self.app.clipboard().setText(addr)
@@ -659,18 +662,75 @@ class ElectrumWindow(QMainWindow):
               + ' '.join(mnemonic.mn_encode(seed)) + "\""
 
         QMessageBox.information(parent, 'Seed', msg, 'OK')
-        ElectrumWindow.showqrcode(seed)
+        if parent: ElectrumWindow.show_seed_qrcode(seed)
 
     @staticmethod
-    def showqrcode(address):
+    def show_seed_qrcode(seed):
+        if not seed: return
+        d = QDialog(None)
+        d.setModal(1)
+        d.setWindowTitle(seed)
+        d.setMinimumSize(270, 300)
+        vbox = QVBoxLayout()
+        vbox.addWidget(QRCodeWidget(seed))
+        hbox = QHBoxLayout()
+        hbox.addStretch(1)
+        b = QPushButton("OK")
+        hbox.addWidget(b)
+        b.clicked.connect(d.accept)
+
+        vbox.addLayout(hbox)
+        d.setLayout(vbox)
+        d.exec_()
+
+    def show_address_qrcode(self,address):
         if not address: return
         d = QDialog(None)
         d.setModal(1)
         d.setWindowTitle(address)
-        d.setMinimumSize(270, 300)
+        d.setMinimumSize(270, 350)
         vbox = QVBoxLayout()
-        vbox.addWidget(QRCodeWidget(address))
-        vbox.addLayout(ok_cancel_buttons(d))
+        qrw = QRCodeWidget(address)
+        vbox.addWidget(qrw)
+
+        hbox = QHBoxLayout()
+        amount_e = QLineEdit()
+        hbox.addWidget(QLabel('Amount'))
+        hbox.addWidget(amount_e)
+        vbox.addLayout(hbox)
+
+        #hbox = QHBoxLayout()
+        #label_e = QLineEdit()
+        #hbox.addWidget(QLabel('Label'))
+        #hbox.addWidget(label_e)
+        #vbox.addLayout(hbox)
+
+        def amount_changed():
+            amount = numbify(amount_e)
+            #label = str( label_e.getText() )
+            if amount is not None:
+                qrw.set_addr('bitcoin:%s?amount=%s'%(address,str( Decimal(amount) /100000000)))
+            else:
+                qrw.set_addr( address )
+            qrw.repaint()
+
+        def do_save():
+            import bmp
+            bmp.save_qrcode(qrw.qr, "qrcode.bmp")
+            self.show_message("QR code saved to file 'qrcode.bmp'")
+            
+        amount_e.textChanged.connect( amount_changed )
+
+        hbox = QHBoxLayout()
+        hbox.addStretch(1)
+        b = QPushButton("Save")
+        b.clicked.connect(do_save)
+        hbox.addWidget(b)
+        b = QPushButton("Close")
+        hbox.addWidget(b)
+        b.clicked.connect(d.accept)
+
+        vbox.addLayout(hbox)
         d.setLayout(vbox)
         d.exec_()
 
@@ -897,7 +957,6 @@ class ElectrumWindow(QMainWindow):
         buttonGroup = QGroupBox("protocol")
         radio1 = QRadioButton("tcp", buttonGroup)
         radio2 = QRadioButton("http", buttonGroup)
-        radio3 = QRadioButton("native", buttonGroup)
 
         def current_line():
             return unicode(host_line.text()).split(':')
@@ -907,8 +966,6 @@ class ElectrumWindow(QMainWindow):
                 radio1.setChecked(1)
             elif protocol == 'h':
                 radio2.setChecked(1)
-            elif protocol == 'n':
-                radio3.setChecked(1)
 
         def set_protocol(protocol):
             host = current_line()[0]
@@ -921,14 +978,12 @@ class ElectrumWindow(QMainWindow):
 
         radio1.clicked.connect(lambda x: set_protocol('t') )
         radio2.clicked.connect(lambda x: set_protocol('h') )
-        radio3.clicked.connect(lambda x: set_protocol('n') )
 
         set_button(current_line()[2])
 
         hbox.addWidget(QLabel('Protocol:'))
         hbox.addWidget(radio1)
         hbox.addWidget(radio2)
-        hbox.addWidget(radio3)
 
         vbox.addLayout(hbox)
 
diff --git a/client/icons.qrc b/icons.qrc
similarity index 100%
rename from client/icons.qrc
rename to icons.qrc
diff --git a/client/icons/confirmed.png b/icons/confirmed.png
similarity index 100%
rename from client/icons/confirmed.png
rename to icons/confirmed.png
diff --git a/client/icons/lock.png b/icons/lock.png
similarity index 100%
rename from client/icons/lock.png
rename to icons/lock.png
diff --git a/client/icons/lock.svg b/icons/lock.svg
similarity index 100%
rename from client/icons/lock.svg
rename to icons/lock.svg
diff --git a/client/icons/network.png b/icons/network.png
similarity index 100%
rename from client/icons/network.png
rename to icons/network.png
diff --git a/client/icons/preferences.png b/icons/preferences.png
similarity index 100%
rename from client/icons/preferences.png
rename to icons/preferences.png
diff --git a/client/icons/seed.png b/icons/seed.png
similarity index 100%
rename from client/icons/seed.png
rename to icons/seed.png
diff --git a/client/icons/status_connected.png b/icons/status_connected.png
similarity index 100%
rename from client/icons/status_connected.png
rename to icons/status_connected.png
diff --git a/client/icons/status_disconnected.png b/icons/status_disconnected.png
similarity index 100%
rename from client/icons/status_disconnected.png
rename to icons/status_disconnected.png
diff --git a/client/icons/status_disconnected.svg b/icons/status_disconnected.svg
similarity index 100%
rename from client/icons/status_disconnected.svg
rename to icons/status_disconnected.svg
diff --git a/client/icons/status_waiting.png b/icons/status_waiting.png
similarity index 100%
rename from client/icons/status_waiting.png
rename to icons/status_waiting.png
diff --git a/client/icons/status_waiting.svg b/icons/status_waiting.svg
similarity index 100%
rename from client/icons/status_waiting.svg
rename to icons/status_waiting.svg
diff --git a/client/icons/unconfirmed.png b/icons/unconfirmed.png
similarity index 100%
rename from client/icons/unconfirmed.png
rename to icons/unconfirmed.png
diff --git a/client/icons/unconfirmed.svg b/icons/unconfirmed.svg
similarity index 100%
rename from client/icons/unconfirmed.svg
rename to icons/unconfirmed.svg
diff --git a/client/interface.py b/interface.py
similarity index 78%
rename from client/interface.py
rename to interface.py
index bdba222d..21ea5a83 100644
--- a/client/interface.py
+++ b/interface.py
@@ -49,25 +49,41 @@ class Interface(threading.Thread):
         #json
         self.message_id = 0
         self.responses = Queue.Queue()
+        self.methods = {}
 
     def poke(self):
         # push a fake response so that the getting thread exits its loop
         self.responses.put(None)
 
     def queue_json_response(self, c):
-        #print repr(c)
+
+        #print "<--",c
         msg_id = c.get('id')
-        result = c.get('result')
         error = c.get('error')
-        params = c.get('params',[])
-        method = c.get('method',None)
-        if not method:
-            return
         
         if error:
-            print "received error:", c, method, params
+            print "received error:", c
+            return
+
+        if msg_id is not None:
+            method, params = self.methods.pop(msg_id)
+            result = c.get('result')
         else:
-            self.responses.put({'method':method, 'params':params, 'result':result})
+            # notification
+            method = c.get('method')
+            params = c.get('params')
+
+            if method == 'blockchain.numblocks.subscribe':
+                result = params[0]
+                params = []
+
+            elif method == 'blockchain.address.subscribe':
+                addr = params[0]
+                result = params[1]
+                params = [addr]
+
+        self.responses.put({'method':method, 'params':params, 'result':result})
+
 
 
     def subscribe(self, addresses):
@@ -148,71 +164,6 @@ class PollingInterface(Interface):
 
 
 
-class NativeInterface(PollingInterface):
-
-    def start_session(self, addresses, version):
-        self.send([('session.new', [ version, addresses ])] )
-        self.send([('server.peers.subscribe',[])])
-
-    def poll(self):
-        self.send([('session.poll', [])])
-
-    def send(self, messages):
-        import time
-        cmds = {'session.new':'new_session',
-                'server.peers.subscribe':'peers',
-                'session.poll':'poll',
-                'blockchain.transaction.broadcast':'tx',
-                'blockchain.address.get_history':'h',
-                'blockchain.address.subscribe':'address.subscribe'
-                }
-
-        for m in messages:
-            method, params = m
-            cmd = cmds[method]
-
-            if cmd == 'poll':
-                params = self.session_id
-
-            if cmd == 'address.subscribe':
-                params = [ self.session_id ] +  params
-
-            if cmd in ['h', 'tx']:
-                str_params = params[0]
-            elif type(params) != type(''): 
-                str_params = repr( params )
-            else:
-                str_params = params
-            t1 = time.time()
-            request = repr ( (cmd, str_params) ) + "#"
-            s = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
-            s.settimeout(DEFAULT_TIMEOUT)
-            s.connect(( self.host, self.port) )
-            s.send( request )
-            out = ''
-            while 1:
-                msg = s.recv(1024)
-                if msg: out += msg
-                else: break
-            s.close()
-            self.rtime = time.time() - t1
-            self.is_connected = True
-
-            if cmd == 'h':
-                out = old_to_new(out)
-
-            if cmd in ['peers','h','poll']:
-                out = ast.literal_eval( out )
-
-            if out == '': 
-                out = None
-
-            if cmd == 'new_session':
-                self.session_id, msg = ast.literal_eval( out )
-                self.responses.put({'method':'server.banner', 'params':[], 'result':msg})
-            else:
-                self.responses.put({'method':method, 'params':params, 'result':out})
-
 
 
 
@@ -235,6 +186,7 @@ class HttpStratumInterface(PollingInterface):
             method, params = m
             if type(params) != type([]): params = [params]
             data.append( { 'method':method, 'id':self.message_id, 'params':params } )
+            self.methods[self.message_id] = method, params
             self.message_id += 1
 
         if data:
@@ -324,6 +276,8 @@ class TcpStratumInterface(Interface):
         for m in messages:
             method, params = m 
             request = json.dumps( { 'id':self.message_id, 'method':method, 'params':params } )
+            self.methods[self.message_id] = method, params
+            #print "-->",request
             self.message_id += 1
             out += request + '\n'
         self.s.send( out )
@@ -357,16 +311,6 @@ class WalletSynchronizer(threading.Thread):
             self.wallet.banner = result
             self.wallet.was_updated = True
 
-        elif method == 'session.poll':
-            # native poll
-            blocks, changed_addresses = result 
-            if blocks == -1: raise BaseException("session not found")
-            self.wallet.blocks = int(blocks)
-            if changed_addresses:
-                self.wallet.was_updated = True
-                for addr, status in changed_addresses.items():
-                    self.wallet.receive_status_callback(addr, status)
-
         elif method == 'server.peers.subscribe':
             servers = []
             for item in result:
@@ -375,18 +319,14 @@ class WalletSynchronizer(threading.Thread):
                 ports = []
                 if len(item)>2:
                     for v in item[2]:
-                        if re.match("[thn]\d+",v):
+                        if re.match("[th]\d+",v):
                             ports.append((v[0],v[1:]))
-                    #if not s:
-                    #    s.append(host+":50000:n")
-                #else:
-                #    s.append(host+":50000:n")
                 if ports:
                     servers.append( (host, ports) )
             self.interface.servers = servers
 
         elif method == 'blockchain.address.subscribe':
-            addr = params[-1]
+            addr = params[0]
             self.wallet.receive_status_callback(addr, result)
                             
         elif method == 'blockchain.address.get_history':
@@ -418,15 +358,13 @@ class WalletSynchronizer(threading.Thread):
             port = int(port)
 
         #print protocol, host, port
-        if protocol == 'n':
-            InterfaceClass = NativeInterface
-        elif protocol == 't':
+        if protocol == 't':
             InterfaceClass = TcpStratumInterface
         elif protocol == 'h':
             InterfaceClass = HttpStratumInterface
         else:
             print "unknown protocol"
-            InterfaceClass = NativeInterface
+            InterfaceClass = TcpStratumInterface
 
         self.interface = InterfaceClass(host, port)
         self.wallet.interface = self.interface
diff --git a/client/mnemonic.py b/mnemonic.py
similarity index 100%
rename from client/mnemonic.py
rename to mnemonic.py
diff --git a/client/msqr.py b/msqr.py
similarity index 100%
rename from client/msqr.py
rename to msqr.py
diff --git a/client/peers b/peers
similarity index 100%
rename from client/peers
rename to peers
diff --git a/client/pyqrnative.py b/pyqrnative.py
similarity index 100%
rename from client/pyqrnative.py
rename to pyqrnative.py
diff --git a/client/remote.php b/remote.php
similarity index 100%
rename from client/remote.php
rename to remote.php
diff --git a/client/remote_wallet.py b/remote_wallet.py
similarity index 100%
rename from client/remote_wallet.py
rename to remote_wallet.py
diff --git a/client/ripemd.py b/ripemd.py
similarity index 100%
rename from client/ripemd.py
rename to ripemd.py
diff --git a/client/setup.py b/setup.py
similarity index 100%
rename from client/setup.py
rename to setup.py
diff --git a/client/upgrade.py b/upgrade.py
similarity index 100%
rename from client/upgrade.py
rename to upgrade.py
diff --git a/client/version.py b/version.py
similarity index 72%
rename from client/version.py
rename to version.py
index be8b02d5..ee1f00c2 100644
--- a/client/version.py
+++ b/version.py
@@ -1,2 +1,2 @@
-ELECTRUM_VERSION = "0.43e"
+ELECTRUM_VERSION = "0.45"
 SEED_VERSION = 4  # bump this everytime the seed generation is modified
diff --git a/client/wallet.py b/wallet.py
similarity index 99%
rename from client/wallet.py
rename to wallet.py
index d30bea71..d4be6852 100644
--- a/client/wallet.py
+++ b/wallet.py
@@ -609,11 +609,8 @@ class Wallet:
         
 
     def get_addr_balance(self, addr):
-        if self.is_mine(addr):
-            h = self.history.get(addr)
-        else:
-            h = self.interface.retrieve_history(addr)
-        if not h: return 0,0
+        assert self.is_mine(addr)
+        h = self.history.get(addr,[])
         c = u = 0
         for item in h:
             v = item['value']
diff --git a/watch_address b/watch_address
new file mode 100755
index 00000000..162c5a6d
--- /dev/null
+++ b/watch_address
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+
+import interface, sys
+try:
+    addr = sys.argv[1]
+except:
+    print "usage: watch_address <bitcoin_address>"
+
+i = interface.TcpStratumInterface('ecdsa.org', 50001)
+i.start()
+i.send([('blockchain.address.subscribe',[addr])])
+
+while True:
+    r = i.responses.get(True, 100000000000)
+    method = r.get('method') 
+    if method == 'blockchain.address.subscribe':
+        i.send([('blockchain.address.get_history',[addr])])
+    elif method == 'blockchain.address.get_history':
+        confirmed = unconfirmed = 0
+        h = r.get('result')
+        if h is None:
+            continue
+        for item in h:
+            v = item['value']
+            if item['height']:
+                confirmed += v
+            else:
+                unconfirmed += v
+        print (confirmed+unconfirmed)/1.e8
+
+