hmm idk that doesnt' seem right. did u have unlimited. well anyway att has it on its website and in stores.
I've had unlimited text for a long time, before my iPhone and it always included MMS (of any sort) as long as it was sent AS an SMS and not email.
With our Treo's (wife still uses hers) we would send MMS's all the time. That didn't change when I got the iPhone since the unlimited SMS/MMS is a PLAN feature not a device feature.
I guess one could say data plans are device features since you need a seperate one per phone.
Our unlimited is a family unlimited (extra 30 bucks) and covers up to 5 phones each with unlimited text, multimedia texting.