My project is a programmable bluetooth HID arcade style controller for your lap. It connects to a PC for playing any game or emulator that you can control via keypresses. 
My primary goals for the project were that it was/had:
- Flexible - The controls need to be changeable on the fly without having to reprogram the components every time a test or change needed to be made.
 - Rechargable
 - For Lefties and Righties
 - No cords
 - Lightweight
 
I hope it is of interest to you all and if you would like to know more about it, you can find the full specs, code and build instructions here:
http://andrewhoover.info/blog/lapcade-v1.htmlOf course, if you find any errors, please let me know!