Hideo Kojima made note of a few changes (1, 2) being made to the PS Vita release of Metal Gear Solid HD Collection. The most notable changes are obviously going to involve the dual-touch panels featured on the device.
In addition, you can use the rear touch pad to stretch and move to the left or right while in first-person view. A lot of this has to do with the lack of L3 and R3 control functionality on the PS Vita.
Kojima also Tweeted an image of the MGS3 title screen. Why? Well because he's in the recording studio again for the game with actor Ginga Banjou recording new lines for the Vita release. Banjou was the voice acto for Major Zero and the new lines are being done to explain the new Vita controls.
You can slice enemy's throat with knife if you flick the touch pad behind.
In addition, you can use the rear touch pad to stretch and move to the left or right while in first-person view. A lot of this has to do with the lack of L3 and R3 control functionality on the PS Vita.
Kojima also Tweeted an image of the MGS3 title screen. Why? Well because he's in the recording studio again for the game with actor Ginga Banjou recording new lines for the Vita release. Banjou was the voice acto for Major Zero and the new lines are being done to explain the new Vita controls.