Just a quick heads-up: if you are an AT&T customer ( and an iPhone user of course ), you probably received text messages along the lines of the one in the above screenshot. It’s a trap! Jailbreakers and especially unlockers DO NOT update your firmware. You will loose the ability to jailbreak ( at least you won’t be able to get an untethered jailbreak right now ) and you will definitely loose the ability to unlock – probably forever.
