Summary Box: Vita’s rear pad a touchy subject

NEW IN VITA: The PlayStation Vita has a touchpad located behind a touchscreen, giving gamers new ways to engage what’s happening on screen.

HOW IT IS USED: It’s a method for climbing ladders in “Uncharted: Golden Abyss,” reshaping balls of junk in “Touch My Katamari” and setting up golf swings in “Hot Shots Golf: World Invitational.”

BATTLING SMARTPHONES: With the popularity of touch-screen smartphones and tablets, stroking a screen to cut a virtual rope or propel a digital bird is no longer a novel idea. The rear touchpad lets Sony distinguish the Vita from the others.