I called ATT on monday to ask about this. The nice lady that answered the phone did not know. She went and asked her manager, who also had no idea. She got back on the phone with me after about 5 minutes and told me "My manager didn't know either, so we googled 'Blackberry 8310 AT&T' and there are about a dozen websites that say it will be released on 9/24/07" (That is as direct a quote as my memory allows.