Microsoft's My Xbox Live companion app for iOS has just been updated with new functionality and a new name: Xbox SmartGlass. What does it do? Well, you can now use your iPhone, iPad, and iPod touch as remote controls and keypads for the Xbox 360. This includes dual-screen experiences as well. The app is available now, and is not yet compatible with the new 4-inch Retina display. Xbox SmartGlass for iOS is free.