Hello,
My company is currently running a Community Game Development Project called "Gamocracy" together with Sony. We are developing a game for Playstation Network (for PSP and PS3) and invite the community to shape the game through a series of challenges.

At the moment we are holding a sprite art competition where you get a chance to get your art into the game, it could be a logo or a tag on one of the signs or walls provided by us or a completely new asset.

If it sounds interesting check out the PSN blog post about the challenge:

http://blog.eu.playstation.com/2011/04/01/gamocracy-invites-you-to-tag-the-walls/#comments

or the forums here:

http://community.eu.playstation.com/t5/GAMOCRACY/bd-p/bEN_Gamocracy

/Kalle