You can play adorable, clever cooperative puzzle game ilomilo via Xbox Live Arcade right now, a small surprise of a video game launch that somebody's trying to keep "secret."
Xbox 360 owners can now download the demo version of ilomilo via Xbox Live Marketplace, but only if they access a special site and receive a download token for the game. Redeem that token to download the trial version of ilomilo, then spend the 800 Microsoft Points to unlock it if you like what you see. I certainly liked it. Maybe you should get "secret access" too and see if this is the way you'd like to spend your weekend.
Just remember, don't skip that tutorial.