It's no secret that Marvel vs. Capcom 3 draws heavily from Capcom's other crossover fighting game franchise, Tatsunoko vs. Capcom. So it's a little strange that the company isn't keeping the community they've established happy with a Wii release of the former.
However, all hope may not be lost. In an interview with Joystiq, MvC3 producer Ryota Niitsuma suggested a Wii version of the fighter may appear in the future, depending on the success of the PS3 and Xbox 360 versions.
"Well, we can't get into any specifics, but all I can is that the game we made right now, as it is, it's for Xbox 360 and PS3," he said. "We want to see how it does and maybe see where we'll take it from there."
Street Fighter IV is not only available on the iPhone but was recently announced for the Nintendo 3DS. Capcom looks like they're pushing the genre as much as possible so it could be that MvC3 shows up on the 3DS or the Wii. Here's hoping.