Microsoft has officially announced its new Xbox 360 interface (New Xbox Experience) and other major updates will be released on November 19, 2008. The updates will be available all over the world at the same time, where the console is officially sold.
Within new updates, gamers will be happy to see new avatar displays designed by Rare. Other than that designers will integrate a video feed from Netflix, allowing users to install games on their hard drives, etc.
You may view official visual Xbox 360 interface display here.