Here it is, Xbox's tool to innovate and compete with Nintendo's Wii U. It is called SmartGlass and it will be available every where Windows 8 is and Microsoft is very kind to include it on all mobile operating systems. You can not do many thing on the current app. Yet just the thought of being able to use it in conjuntion with your game system on any of your mobile devices is huge.
Last night I downloaded the Android Xbox SmartGlass app for my Galaxy Nexus and it worked fine. I tried to download it for my XOOM tablet but it is not compatible yet. The sky is the limit for this app and I personally like the direction Microsoft is going with Xbox and Windows 8!