I have my 4S jailbroken, but I'd imagine it'll be a while for iOS 6...
RE: 3rd gen AppleTV, I'm honestly not sure, I haven't really stayed in the loop since I did mine. I do need another at some point, so some research may be needed before long.
iOS 6 will be soon. It's been jailbroken but not released yet, and from I see, nothing yet for 3rd gen TV.
I'm like you....completely out of the loop since ECF and HoH. COMPLETELY lol.

