Fun new game from kloonigames called Crayon Physics Deluxe, reminds me of ASSIST project. Be sure to check out the other games at kloonigames, their mission? To release a new experimental game each month.
Maniax Memori has designed chessynthesis where the audio output is controlled as the chess game progresses. The final version will use reacTIvision alongside processing. This video shows a visual representation of what to expect, the final release will use a real chess board.