While the game appears to have smooth gameplay, and some pretty nice graphics, I have some major concerns.
Playing the game requires swiping your thumb around on the corners of the screen, pretty typical for an iPhone game, but in this video it looks like thumbs take up a whole lot of real estate during a fight. More importantly, though, it looks like the person playing was having a lot of trouble delivering the moves.
Maybe Capcom should have looked at streamlining the game so it used more motion or perhaps, shudder, just button pushes to deliver special attacks. I know, I know, that's crazy talk. But if you're going to a controller-free platform maybe a virtual stick isn't the best way to do it.