AirPlay Mirroring lets you wirelessly beam whatever you're viewing on your iPhone or iPad to your Apple TV. Whether you're using a dumb network TV app that doesn't include built-in AirPlay or just want to game on your big screen HDTV, AirPlay Mirroring lets you share almost anything and everything in just a few taps.
If you own a Mac running OS X Mountain Lion and either a second or third generation Apple TV, you have the ability to display content from your Mac on your TV wirelessly with AirPlay Mirroring. If you are familiar with how AirPlay works for iOS with display mirroring, it's very similar.
If you've never used AirPlay on your Mac before, follow along and we'll show you how.
While we haven't had time to test all of them, but off the bat we're getting mixed results with AirPlay Mirroring of iPad 2 TV and movie apps. CityTV wouldn't work -- it cited contractual obligations. CTV did work and so did Global. Crackle was buggy. We're trying more now.
Some TV and movie apps use Apple's built in media controls so AirPlay works automagically. Others... have opted out. We were kind of hoping AirPlay Mirroring would let us work around it. Maybe it will. Or maybe Hollywood will update to shut it out of more apps. We shall see.
iOS 5 beta 3 seems to have enabled another feature -- AirPlay mirroring for FaceTime. If this makes it into the final release -- and not everything does -- it'll be fantastic for families and businesses alike.