During the E3 conference, Sony announced that soon you’ll be able to use your PlayStation Vita as an enhanced controller for your PlayStation 3. The controller will be called a Cross-Controller. The Vita will allow the players to play PS3 games using, motion sensing, cameras and the front and back touch pad. The game play will be able to witnessed through the TV or Vita screen.
This feature is now available for Ultimate Marvel vs Capcom 3 and will soon come to LittleBigPlanet 2.