When a customer purchase an iPhone from AT&T or Apple retail store. They get this special code (presumably Alphanumeric) printed on their receipt and the staff would ask the person for their identification card which then the code will be assigned to the person. Upon reaching home, subscribers would use the iTunes to activate the iPhone. The special code would allow AT&T to track if the subscriber have already sign up a plan with them. If within like 30 days. The code still isn't used or what. AT&T can impose a fine on the person. I think if the staffs going to activate on the spot in the shop, then I think it would be a long wait for those who wants to buy iPhone on the first day. 10 minutes average for 1 person. 1 hour = 6 people 24 hours = 144 people In one day, 1 counter can only handle like 144 people. Kinda slow compared when there's lots of people still waiting in line for their new toy.