Hot off the wire is that this week is that we're in for another Xbox Live Arcade twofer this Wednesday, with the release of Space Giraffe, as well as Street Trace: NYC. The former of the titles is from Llamasoft, and designer Jeff Minter, featuring 100 levels of gameplay, and completing them unlocks a new game mode (as long as you have a high enough anal score).
On the Street Trace side of things, you get get your fill of arena battles and racing across the futuristic wastelands of New York City, Marty McFly style. You have your choice of up to 8 player multiplayer over Live or 4 player splitscreen locally across the four arena stages. Space Giraffe will run you 400 MP and Street Trace clocks in at 800 Microsoft Points, and will be available 9:00 AM GMT or 2:00 AM PT and 5:00 AM ET.
Update: Fixed price point for Space Giraffe.