http://www.insidekinect.com Having spent a couple days with Free Riders I can say that it's probably not as bad as you think. The game has single player, co-op and competitive multi-player modes. You have the ability to tag-team with friends and play online. You also get the chance to race on a bike (which controls much better than the hover board). There are no KinectShare pictures or Video sharing which is a bummer. Initially (as you'll see in my videos) I was a little put off with the controls. But I can safely say after spending some time with the game you do get used to them and learn to control the hover board with more accuracy.
Check out http://www.insidekinect.com for the full preview and an additional video!