Debateable. I'd say at this point its an evolving tech. With MMS now on the iphone id wager a pretty penny that devs are going to come up with new implementations no one has even thought of before.
I was never a fan of MMS, even on my old Nokia 3595. The only pics I ever got was my gf at the time sending me pics of her when we were in a long distance thing. Other then that, I never used it.
I agree it should have been implemented on the original iPhone, but it never bothered me that it was left out. I could care less about it being added also. Email is much more useful then MMS, and now I know a lot of consumers who get their email on their phones, that they access on their comps. In essense, one email with a picture can have that picture accessed on the phone and computer, making it twice as useful as an MMS.
I mean, I'm young and most of my friends have blackberrys and iphones, so obviously if your talking about sending pictures to an older non techie with an old nokia, then I can see your issue.
Cut and paste though is a whole different story.