First off, I am fully aware of all of the iPhone unlock services on eBay and around the web. My question is, HOW IS IT BEING DONE? I have a Business Account with 5 line with AT&T and they wouldn't unlock my 4S. I also have a lot of people calling and visiting my iPhone repair store to get thier phones unlocked. I would like to offer them this service, but i cant figure out how it is being done.