Microsoft's Dream Build Play competition for XNA is due to hit 2.0 on the 8th of December. The theme is AI :

artificial intelligence noun: the capability of a machine to
perform functions that are normally associated with human intelligence,
such as reasoning and optimization through experience
[Abbreviation : AI]

Push the limits of Artificial Intelligence while building a game with XNA
Game Studio 2.0. Create a new and innovative use of Artificial
Intelligence in a game and you could win the opportunity to
interview for at an internship with Microsoft Research, Rare Ltd
or Lionhead Studios. Review the Official Rules for more details.

The submission entry period is from December 20, 2007 to January 27,
2008. In the meantime, check out the tabs for guidelines on how to
play, and on the prizes.
Last year they got some amazing entries for their first competition and this year with the imminent release of XNA 2.0, it should be corker!

More info @ http://www.dreambuildplay.com/.

Prize info @ http://www.dreambuildplay.com/main/Prizes.aspx

I think it would great to create a Chrome team for this year's competition. I expect the quality to be as high as the IGF entries.
An innovative game that targets both Xbox 360 and PCs using Chrome. I'll drop the RemObjects guys an email to see what they think.