We have some good news for those of you who are AT&T customers as it appears the carrier is rolling back upgrade eligibility dates for early adopters of last years iPhone 3GS. I have been keeping an eye on my upgrade date online for the past two weeks waiting for it to change from 11/20 with no luck just yet but a MobileCrunch reader has noticed a change to their account.

"Not sure if anyone [..] has noticed this same thing, but my Upgrade Eligibility date on my AT&T account switched from 11/21 to 6/21 in the last day or so. I bought a 3GS on launch day last year, and my upgrade date read 11/21 since then. A few other folks in my office have noticed the same changes happening to their accounts as well."

Could Monday June 21st be the actual release date of the next iPhone? We are leaning towards no considering his original update was 11/21 while mine is 11/20 and based off that assumption, my upgrade date should change to 6/20 which falls on a Sunday. All of the speculation will come to an end at WWDC in the beginning of June. Until then, check your accounts to see if any changes have been made and let us know in the comments below!