A few months ago, a media-center like application that integrates Windows Live products had been announced, though we never had a sign of life from the project since then until now. Today, Microsoft is surprisingly ready to send "Codename Nemo", as it was called, in beta stage under the name Windows Live for TV.
The product will be sent by mail during its beta process, within United States only, and you need to be running Windows Vista Home Premium or Ultimate to be able to run it.
Windows Live for TV lets you view Windows Live Spaces using a 3D view and use Windows Live Messenger and all of its features in a nice, simplistic Windows Live styled media center interface. You can also use a media center remote control to navigate through the interface.