I put my sim card in a Razr Went to wireless.att.com Clicked on "Manage Your Features" Selected regular Unlimited Messaging Plan (not iPhone messaging plan). Sent an MMS from the Razr Put the SIM card back in my iPhone Now I can send and receive MMS messages from my iPhone. In other news, I bought a Razr today and I'm going to use it as a go-phone. When the new iPod touch comes out, I'm going to get that and cancel my iPhone account. Horray for spending $100/year instead of $100/month! That's all. I just wanted to let people know that this works and I didn't have to bug AT&T about anything. Here's what the feature settings look like now.