Some new demos have been rolled out on the Xbox Live Marketplace today. They are: Rock Band 3, Apache: Air Assault and Joy Ride. The Joy Ridge demo requires the Kinect. That specific demo is already on the Kinect Adventures disc so quite why Microsoft also released it for download is beyond us, but it’s there. Kinect released in the US this week to little fanfare. It will be released in Europe on 10th November, where it’s expected to do even worse.