AT&T sanctioned unlocked replacement?

Hello,
I've googled and dug up some old posts about replacing an AT&T sanctioned unlocked iPhone. I got mixed answers and don't know what to think
http://forums.macrumors.com/showthread.php?t=1373348

Perhaps more people have experience with replacements by now? Can anyone give me a definite answer if the Apple Store's replacement will be unlocked as well? I managed to get AT&T to unlock my iPhone 4S, by begging. So I really want to make sure that it remains unlocked

Thanks for your answers!

 

I just figured someone must have replaced their unlocked AT&T phone before I'll call in the morning and post what I find out. Hopefully, it'll help someone else out in a similar situation.

 

Thank you

 

I called Apple and spoke with 3 people. The Senior Advisor had no clue if the replacement provided would be unlocked and couldn't elaborate. Anyone?