FireCore's popular aTV Flash software for jailbroken Apple TV's has just been updated to add even more features for first generation Apple TV users. If you have a jailbroken Apple TV, aTV Flash is definitely an add-on package you'll want to check out.
If you've been waiting on a jailbreak for iOS 5.1.1, an untethered version should be coming soon. That's according to pod2g. But is it coming to iPhone, iPod touch, iPad, and Apple TV, and which versions of each?