Street Fighter X Tekken on consoles? Been there, done that. Handhelds? Pfft, we first previewed the Vita version forever ago. iOS? Well, now--that's a different story.
The iPhone/iPad version of SFxT was at PAX 2012, and we made sure to get some footage of the game in action. It's... well, pretty much what you'd expect. But you should still watch the video to make sure what you expect is what we expect you to expect. You know, to be safe and all.