I'm sure Apple has a passing interest in the gaming market as it could be an extra source of revenue for them, but it's pretty clear at this point that Apple TV games aren't going to be Wii/PlayStation/Xbox competition (at least not anytime soon).
This. Apple has no direct interest in directly competing in the current console gaming market as it exists today. They prefer to create their own new (more profitable) market. As they did with mobile phones and the Apps store, they will grow a new customer base from a streaming tv box with apps, and grow the App store game revenues by another several $Billions/annum. Then even the high-end game console developers will no longer be able to ignore the Apple TV's customer base, and will build brand new content tuned to that platform, instead of trying to force fit current legacy console stuff.
The new platform will then drain customers from current console game genres, and make them into vintage stuff that mostly old people (parents of "real" gamers) play.
Few people saw the (gen 2) iPhone 3G as the start of a $multi-Billion game platform. Same thing will repeat itself with the gen4 Apple TV.