How can some of these people factory unlock iPhones? Do they just call the carriers many times in a day until they get to a rep that will be kind enough to do it for them? Reason I ask is because I just paid someone to factory unlock my 4S for $100 yesterday. He ask for my IMEI number and I gave him the money. He called me a day later and sent me the info via email. I restored my phone thru iTunes today and viola. This is better than having to buy gevey sim and wasting all the trouble and money whenever theres an IOS update.