Hi I've had an ipt3g since dec 09, but recently the sleep/wake button broke. I got a replacement from AppleCare (it arrived yesterday), and it was shipped with 4.0. Does iTunes allow 3.1.3 downgrades anymore? and is there a way that i can go down to 3.1.2. Can you transfer shsh blobs from another iDevice and use it on your own? btw my last ipod was fully jailbroken on 3.1.3, so i'd like to do the same on this one. Help is greatly appreciated.