Apple TV as a Gaming Console?
An argument can be made that they already have a gaming console: the iOS platform. Some games (The Incident comes to mind) already support streaming the game through an AppleTV, while using the iOS device as a controller. With iOS 5, there is supposedly built-in support for streaming almost anything through an Apple TV. My biggest critique of iOS gaming on my iPhone is that my fingers get in the way, so we'll hopefully see more streaming-the-screen-through-a-TV.