i thought it would be, since you got it from o2 even if it was through apple but for o2 it was not directly from apple.. that sucks.. maybe you can ask them to unlock it for you if you promise them you will pay the contract
i see. why wont o2 do it. maybe later on in the year... i dont know i wont be jailbreaking. some one else seems to have tried that website for the 4 then said he had echoing while making calls thought some one was recording him...