Great follow-up. So, it would seem that when AT&T "refurbs/resells" an iPhone ... Apple's warranty systems don't know about it. Either immediately, or possibly ever (perhaps this is something they overlooked). So I'd say it's worthwhile for everyone with a refurb to check their warranty date online (I think this is the right URL to do so -- https://selfsolve.apple.com/GetWarranty.do) and call in if an update is required.
Originally Posted by nickster
I will do this this evening with my fiancee's 4gb and report back.
"When fascism comes to America, it will be wrapped in a flag and carrying a cross."