I started a thread about this, but why can't it play AUDIO to an Apple TV? This really makes me mad, as I can use iTunes to stream music to my Apple TV (optical -> receiver, often never even turn on the TV), and my iPad can stream to my Airport Express, but I can't stream audio to my Apple TV from my iPad?
This isn't even planned obsolescence , it's just screwing users from a consistent experience.
Maybe its just a bug? This is only the first Beta....