At the Microsoft E3 press conference, Microsoft have announced Xbox Smartglass. This allows all your devices to work together to help you seamlessly move from one to the other with your movies and TVs.
Not only that, you can also use your devices to work with games. In the video they showed, it shows that you can create new plays using your device while playing the game on your Xbox. More interestingly is that you can connect your device with Halo 4 and Halo Waypoint you can unlock new info from the game to the device. you can also set up multiplayer games in Halo 4.
To cap off Xbox SmartGlass, you can use Internet Explorer on your Xbox with any device you have, it doesn’t have to be a Windows phone or tablet. It launches this fall.