Well I got the system a couple of months after launch....
PS Vita: Uncharted Golden Abyss, Lumines, Marvel Vs Capcom 3, Killzone Mercenaries, Wipeout, Earth Defense 2017.
PS Network: Sound and Shapes, Spelunky, Gaucamelee!, Machinarium, Walking Dead, Hotline Miami, Thomas is Alone.
PS 1 and PSP: Tactics Ogre, Rayman 1 & 2, FF Tatics, FF7.
I got the system at launch intending to turn it into another emulation machine like my PSP 1000 but I ended up like the system, PS1, PSP and indie games so much I havnt bothered to emulate on it! Only thing is I dont have PS+ but since I dont have a PS3 or PS4 there really isnt any point in getting it