A: Initial aim was for a simple DIY ECU for go-karts. The important part of that being SIMPLE! The code is written with simplicity above all else in mind and all areas are well commented. Where code is complex or low level, a high level pseudo code example is given to explain what is being performed.
A: Nope, well, not as of June 2013. That said, the software IS largely complete and many of the subsystems are well tested. A reference hardware setup is currently being put together for full testing
A: Originally it was the Freetronics Leostick (http://www.freetronics.com/collections/arduino/products/leostick) with the aim of making a teeny tiny ECU. This Leonardo compatible board is suitable for a single cylinder applications but lacks the hardware timers do multi-cylinder engines. For Phase 2 (Including up to 4 cylinders) an Arduino Mega (Or other ATmega1280 / ATmega2560 powered SKU) will be required