Has anyone actually gotten AT&T to unlock an iPhone?
Yes, I've unlocked 4 myself and helped family members and friends unlock another dozen.

The web interface is nice, but I also call them after 2 days if the unlock isn't done since most of the unlock requests are either processed rapidly or hung due to an error or mis-typing/missing entirely a digit or two. Once I get someone on the phone, the unlock usually is done the next day but I also follow their procedure and submit the web form first before bugging AT&amp;T in person.

So, the process is straightforward andbutyou'll do well to triple check your IMEI and account details before submitting your unlock request. I've not had any issues by following the guide as published by AT&amp;T - even when we purchased an AT&amp;T phone second hand for a gift / spare phone while traveling internationally or for a young child to use as an iPod and occasional unlocked phone.

Here is AT&amp;T's knowledge base on their current unlock policy:


What are the eligibility requirements for unlocking iPhone?