Now that Microsoft is out with Windows Phone 7, the company is now trying to integrate the platform with more and more products. Microsoft is apparently giving Xbox 360 a major overhaul and is incorporating WP7 and Xbox 360 together. The console's dashboard will be updated and now the console will have a browser based editor for creating and customizing your avatar.
Microsoft is also looking to offer web-based games, which you can play on Windows Phone 7 or with your Xbox Live buddies. However, it is not known whether you will be able to earn any achievements by playing these games or not. The process of accessing your messages and games invites will now be simplified. The new features will also let you spy on your family's use of Xbox Live. Interesting, Eh! Also expect the search function for the marketplace to work smoother and your browsing experience a bit enhanced.
The site will be down for unknown time period, starting from 5:00 AM ET. But once it is back, you will be able to enjoy all the new features. Have Fun.
Source: Slahsgear