Go to the devteam blog to get it. I've used to to JB my iPad and iPod on 4.2.1 IOS and it has worked without issue. Since it is untethered, if you need to reboot the IOS, you will not need to reconnect the device to your computer.
oooo me 2
Cant code cause I dont know how, but give me the paint bucket and my eraser and have at you!
When Geohot goes to jail....can we jailbreak him too?!...untethered of course