Microsoft has announced that it will be releasing Cloud Saving. This will enable you to save your game saves, but also your profile! When you have these saved to the cloud you could go on any other internet-connected Xbox 360 and have your profile and game saves right there.
This will be getting rid of the Gamertag Recovery option for many people.
Microsoft also announced Beacons! Beacons will enable you to tell your friends on Live and Facebook that you want to play a certain game. Live will also alert you of friends playing or want to play the same game. Even if you happen to be doing something else!
Credit For Image: PCGamer