We learned this very quickly when trying out the game at Capcom's Fight Club event during GDC. Granted, there is a simplified input configuration -- which we discovered after this video was shot -- but longtime Street Fighter fans could get a tad miffed by all the whiffs.
Should you make the $10 investment for SFIV, on your phone, you'll probably want to spend some time in the game's expansive "Dojo" training mode before hitting the world circuit.

