Apple TV is Updated to iOS 5.2, Gets Bluetooth Keyboard Support
Apple has released iOS 5.2 firmware for the Apple TV featuring Bluetooth support, Up Next, and iTunes in the Cloud.
iTunes in the Cloud:
Browse and play your purchased iTunes music directly from iCloud.
See upcoming songs when playing music, and easily choose what plays next.
Use your Apple Wireless Keyboard to control your Apple TV.
You can get the latest Apple TV firmware from here.