Sup all, my ? is, has anyone gotten the vita? and if so, have you tried playing ps1/psp games? how do they look, do they take the full screen or?

Also, psp games like monster hunter etc, where in PSPs case, instead of a second right analog, they substituted the face buttons (triangle,square,circle,and "x") to function AS
a analog, 

on the vita, can i actually play WITH the new second analog? and will the game play the same?