DiamondMac
macrumors 68040
http://www.tekgoblin.com/2011/10/04/att-not-allowing-early-upgrade-to-iphone-4s/
Update: Got a response from AT&T, No Dice:
Hi there we arent making changes to our upgrade policy.
You can check eligibility online or on the new AT&T Upgrader App, out
soon. This makes upgrading to iPhone easier and faster than ever before.
And, lets you preorder right from your handset starting Friday, October
7. Later today, existing iPhone customers can download the app from the
App Store and our other customers can visit www.att.com/phoneupgrade.
Theres no need to visit our stores let the app do the work for you -
upgrade and preorder right from your phone. The app tells you if youre
upgrade eligible for iPhone 4S and beginning Friday, helps you place
your preorder.