I apologize if this is a stupid question. I have an iPhone 4 on 5.0.1 baseband 01.59.00 (I think that's the baseband it shipped with the day it was released). It is currently unlocked and jailbroken. I will be out of contract in a few weeks. I was thinking about upgrading to 5.1.1 and letting the baseband update this time (previously I have always preserved my baseband and followed the dev team methods). Is there anything I will lose by upgrading the baseband, jailbreaking, and then having AT&T unlock me in 3 weeks? Thanks!