Does the iTunes 7.4.2 (released on Monday) relock an unlocked iphone (I used iPhoneSimFree)? I thought only a firmware update would relock the phone... But I also thought I read somewhere, that the update relocked a phone that was on unlocked on Rogers(in Canada). I unlocked my girlfriends phone to work on T-Mobile and dont know what this iTunes update will do to it. She refused to switch to AT&t, like I did... I would like to update iTunes for my iPhone, but I don't want to mess up hers. Any help please... Also, on a side note... When we got her phone to work, the EDGE was not working. So, she called T-Mobile to see if she had the right data plan setup. During this conversation with T-Mobile she told them that she was using an iPhone, and they freaked out! They put her on hold and got a manager on the phone. She told her she was the first to call them with a working iPhone on T-Mobile and said they would give her a discount on the data plane. I'm not sure the exact price of the plan but I think she is only paying $5.00! They were very excited!