I'm so fricking sick of this argument.
Guess what? NOT EVERYONE ELSE'S PHONE HAS E-MAIL! It's not only about sending/receiving MM to the few of us with smartphones, it's about sending/receiving to the vast majority of the cell-phone population, which does have MMS, but may or may not have access to e-mail on their cell phone.
Yes, I knew the iPhone didn't have MMS when I bought it. Does that mean that I'm forever constricted from hoping that it will get this basic function in the future? Nope. I'm not going to bitch and moan about it constantly, but I'm also not going to just suck it up and never mention it again, either.