PopSci.Com article: Make Your Own Game, and my own experience with the early versions of Kodu point to a game system that is going to allow people to tell stories and have fun. When Kodu is shipped it will be available from the XBox community Site. If you want your brothers and sisters to get excited about gaming, this is the way to go. If you are a teacher in the K-12 grades, this is it, beats the other game tools, because it works on the XBOX 360!
More to come, stay tuned! For more information see the article: Kodu is coming soon! and the Channel 10 video.