Arriving a bit sooner than expected, MGS Touch has created a lot of hype online, including popular places like the TouchArcade forums. Dunno if the original MGS is similar, but MGS Touch is based on a touch-and-shoot concept, put together in a more serious, storyline-based and highly polished setting.
Swiping on the screen changes your aim and you shoot by tapping repeatedly. To take cover, you simply have to take your finger off the screen.Pinching out enables the sniper rifle to shoot far-off enemies. Occasional powerups which can be taken by shooting them provide a new weapon, puts you in stealth mode or increases your health. Like most of such games, MGS has explosive barrels scattered all over which you can shoot to trigger an explosion.