This guy at Next-Gen/EDGE magazine does this weekly game design contest, and this week it's to design a concept for an iPhone game. If you've got an idea for a game, but don't know how or have the time to actually make it, you can still get something from it. The prize is a year subscription to the magazine, but someone from the industry reviewing your concept and possibly even giving feedback is actually even more valuable.
Check it out: http://www.edge-online.com/blogs/iphone-games-design-challenge-4
Check it out: http://www.edge-online.com/blogs/iphone-games-design-challenge-4