I'm hosting a game development colab contest over on SlimeSalad. Basically, you, a game developer, signs up and then (at the end of October) you get paired with a partner at random and begin making a game together with that person. The game you make together is then due in July of 2012. That's the basic outline of the contest. If you'd like to know more or even enter, follow this link to slimesalad.
To sign up, you'll have to make a slime salad account if you haven't already.