@i0n1c: The iPhone-Dev-Team is already beta testing the untether. So it is up to them to give you your tool of choice
@i0n1c: Please don't bother the Dev-Team now. The deal is: if the beta test is successful, they are free to do whatever they want with it.
So it seems like we can get it anytime soon, but the other fact that lies here is that it won't work on iPad 2 as Apple has already patched Comex's exploit on iOS 4.3.1 so we also need a new exploit for that one.
LINK : GEOHOT