TechCruch has the scoop on a fairly basic HTML5 game of Blackjack running on the Apple TV. While a browser-based game of Blackjack isn't exactly mind blowing, it's still awesome seeing the Apple TV taking these baby steps towards becoming what could potentially be a brand new market for iOS developers. Remember, the foundations of the App Store we know and love today was largely in part of jailbreak developers proving it could be done.
Getting this setup running involves jailbreaking and installing the Couch Surfer browser. It's not much, but it's a start. Those who have been around since the first iPhone 1.x jailbreaks surely will recall just how comparatively lame all the offerings were back then too.
We'll be keeping a close eye on future Apple TV gaming developments.