AT&T plans to drop support for all Pay As You Go iPhone users, in an effort to move all pre-paid iPhone users onto contract plans ahead of the iPhone 3.0 release. Erica Sadun of TUAW writes that she called AT&T after receiving a screenshot of an official AT&T text message sent to a pre-paid iPhone user, which stated that the upgrade may affect data service. The message asked the user to call AT&T; he was told that if he downloads the software…
