Oh yes, I was able to do that with my Razr. I guess what I'm referring to is being able to view a YouTube like video that was sent to the iPhone via e-mail. It's sounding like there may be some YouTube capabilities included with the phone so I'm guessing this would probably not be a problem.
Well, the newer Blackberries are just starting to get into the mainstream with MMS features, however, the model I currently have is pretty basic. I can receive an e-mail with a photo attachment but I cannot send one, and ANY video capabilities are out of the question. As you can imagine, the iPhone will be a quantum leap forward compared to this phone.