What is this strange Xbox 360 countdown timer for?

Head over to xbox3601029.com and you’ll find a countdown timer that has about 10 days left on it. There’s wings and purple coloring, and all the ‘o’ letters are colored. You know that Microsoft puts Kinect games in purple boxes, right? Maybe the purple is a hint. 

“Coming soon,” it says.

What’s coming soon? Any guesses?

Dale North