This is my second project. When I built my first robot I was not aware of this site, so I'll post about that in few days.
This robot is a minor modification for the first. In first I was using SRF05 as an Input sensor. In this version I replaced it with APC220 Module. Now I can leave the robot untouched and I can experiment on the remote control side. On the remote I can use Accelerometer, Wii nunchuck, Processing, USB Mouse and tons of more input devices which I've not even thought of (Suggestions are welcomed in comments).
I'll post more images of nac N within a day or two.