Apologies if this has been posted already. I abused the search tool for 45 minutes and didn't see a clear answer to my question. I want an iPhone and my wife doesn't. Is it possible to upgrade just one line of an existing AT&T family plan at the Apple store? The line is eligible for an upgrade. I've asked at two separate AT&T stores and was told that yes, you could have one iPhone and one regular phone without a problem. I'm worried that the Apple store will have a different answer. Thanks!