If Apple was going to put MMS on the iPhone they would have already done it, it's incredibly trivial for them to implement. You can push pictures to MobileMe and then send people the gallery link, so they'll want to sell you that service. It's just as easy to use email, which the iPhone has a great email client for a phone, so they want you to use that service. I'm pretty sure that if we don't have MMS now, we're not going to ever have it. Which is perfectly fine with me, like I've said numerous times, I don't know a single person over the age of 13 that uses MMS.