Here is a list of game that have been confirmed to release on PV:
Badman
Bioshock
BlazBlue: Continuum Shift II Plus
Broken
Call of Duty
Dungeon Defenders
Dust 514
Dragon's Crown
Dynsaty Warriors
Everybodys Golf
Gravity Daze
Hustle Kings
Killzone
Lego Harry Potter Years 5-7
Little Deviants
LittleBigPlanet
Modnation Racers
Monster Hunter Portable 3
Mr Inkjet
Oddworld: Munch's Oddysee
Oddworld: Stranger's Wrath
Rayman Origins
Reality Fighters
Resistance
Ridge Racer
Ruin
Silent Hill: Book of Memories
Smart As
Sound Shapes
Super Stardust Delta
Stardrone
Tekken X Streetfighter
Top Darts
Uncharted: Golden Abyss
Virtua Tennis 4
WipEout 2048
Looking Great :D oh and you should also write down that it will be REGION FREE(take that 3DS!!) as it's been confirmed over at IGN.
http://gamrconnect.vgchartz.com/thread.php?id=130023&page=1# Official Playstation Vita Thread! Come in and join!!!