I'm looking forward to:
1. Canceling my cable subscription and shoving it to AT&T (technically, since I own an Android, don't own and iPhone and just convinced my girlfriend to stop waiting on the demon-spawn Verizon iPhone and get an Android device, I would be shoving it to AT&T AGAIN. Nothing against the iPhone or Apple, just don't like AT&T)
2. Having thousands of apps at the ready and not being limited to iOS AppleTV's playground
3. Sweet, sweet Google search in HD