So I have read that you need a AT&T account to activate your iphone, otherwise you can't use your phone to unlock it. So i was wondering, would it work if i just went to an AT&T store and bought a pre-paid SIM card? Does anyone know how much that would cost? I know its about 10$ for Tmobile SIM card...can I use that to do the Unlock? Also...I'm a bit confused as to how to go between jailbreaking and unlocking. If I use jailbreakme.com, to jailbreak, how to I get cydia and unlock? Sorry, I know these are sorta bad questions, but I checked the guide that is stickynoted, but it was about 2g and 3gs..so if someone can point me in the right direction?