No, you don't have to activate a line of service, but I do believe they check that you are an existing AT&T subscriber. They ask for your phone number, but it doesn't activate the phone on your line. They give you an unopened box to activate at home via AT&T customer service.
yes you can i bought my 16gb iphone4 non-commitment at Houston Apple Store
Just walked in, yes they asked for my AT&T info. I said I am not an AT&T customer, i wanna buy outright, he said "OH OK that will be $599"
yes you can i bought my 16gb iphone4 non-commitment at Houston Apple Store
Just walked in, yes they asked for my AT&T info. I said I am not an AT&T customer, i wanna buy outright, he said "OH OK that will be $599"