From AT&T’s information page for the UNICEL acquisition:

You’ll also be automatically enrolled in the AT&T Upgrade Advantage(SM) Program. […] Not only will you receive discounts on the widest selection of wireless phones, but the higher your monthly rate plan and data-package rates, the more you’ll save.

Unfortunately, the Upgrade Advantage page notes the following:

You can earn additional equipment discounts of up to $100 off of the standard 2-year contract renewal discounted price. Additional equipment discounts do not apply to iPhone.

Bummer, especially considering that the few of us who are happy AT&T bought our UNICEL network are so because it brings us full iPhone support.

[Via Mark Engelhardt]