I just came back from a trip to Europe where unfortunately my iPhone 4S was stolen. The phone was locked with a passcode and was in Airplane mode with all the radios turned off. It is running the lasts version of iOS 5.1.1. There is no way for me to locate it with find my iPhone, but I sent a wipe command just in case. I have two concerns though. First is there any way for the thief to get access to my phone (I would assume it would require some sort of jailbreak). And second, when I do end up getting a replacement iPhone what do I do about deactivating iMessaging/FaceTime on the old iPhone? Do I even need to worry about that? Thank you for the help!