According to MacRumors an AT&T customer called regarding his iPhone upgrade date being changed.

(The) customer noticed his eligibility date for a subsidized upgrade had been pushed back by over five months.

The AT&T representative proceeded to explain that Apple had informed AT&T that there would be no new hardware for June or July. I was of course skeptical of this particular story as it was an AT&T rep as the source. Considering the number of times a Verizon representative told me the iPhone was coming to Verizon Wireless you can understand why.

I decided to look up my account eligibility upgrade via AT&T and something did change. Though my date of upgrade has always been 9-30-11, a new presentation of when I was eligible for upgrade was given. Note that I was given the AT&T upgrade information as well as the iPhone eligibility.

It would seem AT&T went out of their way to let me know I was not eligible for an iPhone upgrade. I am not sure what this all means, but it would appear on the surface AT&T trying to make it clear to its customers when they are or are not eligible for an iPhone update. It also may be yet another signal Apple is pushing back the launch the next iPhone.