From the MAKE Flickr pool
Flickr member svofski made this rather sweet touch-sensitive keypad with backlighting –
This a custom implementation of capacitive sensing technlogy as per QMatrix Whitepaper. It uses an ATmega8 to scan the keys and outputs ASCII characters to the serial port.
Update: As the pointed out in the comments, Google’s Russian is a little rusty. For further explanation, best to check out the tech whitepaper.