Reports are showing up all over the web today that iPhone MMS has been activated seemingly at random for many users. September 25th is supposed to be the official launch date, but users from locations as saturated as Manhattan and as far-flung as Iowa have reported MMS support on a variety of carrier and OS configurations.

This isn’t exactly a surprise. One of AT&T’s major concerns with MMS activation for a phone that has become the most popular camera on Flickr is network load. A slow and steady roll-out is basically a silent beta test – a way for users to get an experience they’ve been waiting for earlier than expected and give AT&T the network feedback they need. If this hadn’t been such a long time coming, I’d be inclined to say the carrier did something right.