HBO's epic fantasy series Game of Thrones returns this Sunday and if you a) have an Xbox b) are an HBO subscriber and c) own an iOS device or Windows 8 tablet, you're going to want to download the SmartGlass app ahead of the premiere.

After launching on Android over a week ago, Xbox SmartGlass is now available for iOS. Go grab it on your iPhone or iPad so you can control your Xbox in a whole new awesomer way. The new SmartGlass app is actually an update to the old Xbox Live app, which is a little weird but whatever.

Xbox SmartGlass has been floating around for a while now, but we got a chance to check out some of the final features being added to it before it's available to everyone later this week. Here's the new stuff.

As expected, Microsoft just announced something called SmartGlass at E3. Less expected? Just how awesome SmartGlass turned out to be. What could have been just an Apple AirPlay imitation, is something more ambitious. Something that could change television forever. But what is it, exactly?

According to a report from the Examiner's Nicholas Gigante, Microsoft is ready to debut a revolutionary XBox 360-integrated system at the upcoming Electronic Entertainment Expo, June 5th-7th. Various outlets are describing it as either an actual, physical tablet or as a "companion application" that will run on your own…