So I've successfully jailbroken my AppleTV using these instructions
Of note I had to use iReb from ih8sn0w to install the package I built with pwnage through iTunes with no errors.i
UNFORTUNATELY I can get neither wifi nor ethernet usage rendering the device essentially useless. I was wondering if anyone had had some success with this matter.
Additionally I gave this a shot
where you put an old 4.1 build into a 4.2.1 package and as long as I used iRed and the tiny-umbrella server on my own computer instead of the itunes authentication sever it makes it almost all the way through until I get a 1600 error at almost the end of the process.
ANYONE WITH ANY INSIGHT ON EITHER DEVELOPMENT I'D LOVE TO HEAR IT. THANK YOU.