The winner will be chosen by a panel of Video Thing participants and the prize is your choice of a neuros mp4 recorder or an elgato eyetv hybrid! The deadline for submissions is July 1st of this year.
From the Make page:
We have a new kit for sale in the Maker store, the Cellular automata video synthesizer kit. This easy to contstruct kit is a fun way to play with cellular automata and video synthesis. When complete you will be able to uncover endless visual and sound patterns on any TV with a composite NTSC video input. The kit provides a pre-assembled, pre-programmed Video Critter Mini board, three potentiometers, and a push button. Just solder up the potentiometers and button to the circuit board, add an enclosure, and you're done!
(* this contest isn't sponsored or endorsed by Make magazine, but we love them and hope they will smile on it as a celebration of all things MAKE)
MAKE magazine Link
BoingBoing post about the kit
Wikipedia: Cellular Automata