its one of the sessions at BUILD today, which will happen soon. Iâ€™ll update with more details once they reveal it.
Xbox LIVE, Microsoft’s premier entertainment service, is coming to Windows 8. Whether you are developing a game or another kind of entertainment app for Windows 8, Xbox LIVE can help your app stand out in the crowd and help engage and delight users. You will learn about how to implement our well-loved features like Achievements, Multiplayer, Avatars and Community and brand new ones like roaming storage and profiles.
Source: Channel 9