There are some great Black Friday deals on iPhone 5s e.g. Walmart. I'd like to upgrade our 4's, and am on AT&T with a corporate FAN. Years ago, I tried to upgrade at an Apple store and was told I could only go to the AT&T store because my account was associated with a corporate FAN. Anybody know if this is this still the case? Unfortunately AT&T stores don't seem to have any iPhone black friday deals. Thanks!