I built two game consoles using some custom hardware on top of the Arduino Uno and Esplora. Check it out:
Just reported it to the moderator that it is in the wrong forum group.
"Should go in product announcements as it seems like an ad."
There's no schematics, no indication that it's open source...
Whereas the uzebox you can build yourself and download the code.
http://belogic.com/uzebox/index.asp