I bought the unlock for my 4S. I already submitted my IMEI# and now I'm just waiting for the email telling me I'm unlocked. Also went and swapped out the phone today under warranty and got a new cable under warranty, too.
I should be able to bank when I sell this phone now. Unlocked 64GB 4S, basically brand new. Brand new OEM headphones, brand new USB cable. Original box. Can't wait to put it on Craigslist now!