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AT&T just announced that MMS for the iPhone 3G and 3GS will become available on September 25th. While the iPhone itself already supports this feature, AT&T held back on making it available to its customers, much to the disappointment of many iPhone owners. MMS, which basically allows users to send images, audio, and short videos to other phones just like a text message, will be enabled through a software update for the iPhone. According to AT&T, the company didn't enable this feature any earlier because it needed to upgraded its infrastructure to the point where it was ready to handle the traffic it expects to see once this feature becomes available.

A little over a month ago, the next update to the iPhone firmware - OS 3.1 beta - was released to developers. With the updated firmware, there are a number of bug fixes and a few new features, including voice control over Bluetooth, copy and paste for phone numbers, vibration feedback when re-arranging screen icons, and more. However, the most notable change in the latest OS update is the re-inclusion of MMS. For unknown reasons, this feature was removed from the fifth beta and the public release of the OS, but now it's back and enabled by default. Although the functionality isn't working over the AT&T network yet, there are reports that the next iPhone update will indeed enable MMS. The only question is when?