Hey guys, I'm looking to get my aunt a iphone 3gs. I found a couple of good deals but they are all not unlocked. She needs it unlocked as she is not with At&t. The ones I am looking at have the ios4 installed. I am looking to unlock it with my computer then giving it to her. Obviously she will need to sync it with her computer, by doing this, will the unlock be lost? Also, I read on here that you must jailbreak then use ultrasn0w to unlock the phone. However, same question, when She syncs it with her computer, will the jailbreak, and thus the unlock also be lost? Any help is much appreciated! Thanks in advance!