This list is not exhaustive.
However, if you would like an exhaustive list, please head here: http://www.scei.co.jp/corporate/release/110914a_e.html
The above link also includes pricing and accessory information, as well as the hardware specifications of the system.
If you want to add games to the list (that have screenshots), please feel free to mention them, but please only mention them if you're personally interested in the games.
2011 Titles (Japan Only):
Uncharted: Golden Abyss | Developer: Sony Bend | Publisher: SCEI | Genre: Third Person Shooter | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_02_unc
Hot Shots Golf 6 | Developer: Clap Hanz | Publisher: SCEI | Genre: Sports | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_01_ming
Ridge Racer | Developer: Namco Bandai/Cellius | Publisher: Namco Bandi | Genre: Racing | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_30_rr
Blazblue: Continuum Shift Extend | Developer: Arc System Works | Publisher: Arc System Works | Genre: Fighting | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_17_bcs2
Ultimate Marvel Vs. Capcom 3 | Developer: Capcom | Publisher: Capcom | Genre: Fighting | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_04_umc
Disgaea 3 Returns | Developer: Nippon Ichi | Publisher: Nippon Ichi | Genre: TRPG | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_15_dis3
Army Corps Of Hell | Developer: Entersphere | Publisher: Square Enix | Genre: Pikmin | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_14_zigo
Lord Of Apocalypse | Developer: Access Games | Publisher: Square Enix | Genre: Action | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_13_loa
Dream C Club Zero | Developer: Namco Bandai | Publisher: D3 Publisher | Genre: Dating Simulator | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_20_dcc0
Virtua Tennis 4 | Developer: Sega | Publisher: Sega | Genre: Sports | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_18_ps4
Dynasty Warriors | Developer: Tecmo Koei | Publisher: Tecmo Koei | Genre: Action | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_08_mso
Katarmari Damacy | Developer: Namco Bandai | Publisher: Namco Bandai | Genre: Action Adventure | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_32_kata
Shinobido 2 | Developer: Acquire | Publisher: Konami | Genre: Action/Adventure | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_25_shi2
LittleDeviants | Developer: BigBig | Publisher: SCEI | Genre: Minigame Compilation | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_34_sawa
Dungeon Hunter Alliance | Developer: Gameloft | Publisher: Ubisoft | Genre: Action RPG | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_12_dark
Michael Jackson: The Experience | Developer: Ubisoft | Publisher: Ubisoft | Genre: Music | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_11_mje
2012 Titles:
Gravity Daze | Developer: Team Siren | Publisher: SCEI | Genre: Action/Adventure | Release Date: February 2012
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_03_grd
LittleBigPlanet | Developer: Double 11/Tarsier | Publisher: SCEI | Genre: Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_40_lbp
Wipeout 2048 | Developer: Sony Liverpool | Publisher: SCEI | Genre: Racing | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=IvO8T1eG_vU&hd=1
Persona 4: The Golden | Developer: Atlus | Publisher: Atlus | Genre: JRPG | Release Date: Spring 2012
Trailer: N/A
Extreme Escape Adventure: Good People Die | Developer: Chunsoft | Publisher: Chunsoft | Genre: Adventure | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=sHMhHA5a6v8&hd=1
Ys 4 – Celceta, Sea Of Trees | Developer: Nihon Falcom | Publisher: Nihon Falcom | Genre: Action RPG | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_16_ysr
Sound Shapes | Developer: Queasy Games | Publisher: SCEI | Genre: Music Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_38_sou
Dragon's Crown | Developer: Vanillaware | Publisher: UTV Ignition | Genre: Action RPG | Release Date: Spring 2012
Trailer: http://www.youtube.com/watch?v=XBsb5OOwBx8&hd=1
Tales Of Innocence R | Developer: Tales Studio | Publisher: Namco Bandai | Genre: Action RPG | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=lo-CUdAZGis&feature=feedu
Lumines | Developer: Q Games | Publisher: Ubisoft | Genre: Music | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_10_lumi
Street Fighter X Tekken | Developer: Capcom | Publisher: Capcom | Genre: Fighting | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_05_sfx
Ruin | Developer: Idol Minds | Publisher: SCEI | Genre: Action RPG | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=cdUbdn9U7hQ&hd=1
Super Stardust Delta | Developer: Housemarque | Publisher: SCEI | Genre: Twin Stick Shooter | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_37_ssd
Alien Spidy | Developer: Enigma SP | Publisher: Enigma SP | Genre: Platformer | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=yI0V9KmDfMc&hd=1
Rayman Origins | Developer: Ubisoft Montpillier | Publisher: Ubisoft | Genre: Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_09_rei
Resistance: Burning Skies | Developer: Nihilistic | Publisher: SCEI | Genre: First Person Shooter | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=OtgnNQC2Fss&hd=1
ModNation Racers | Developer: United Action Front | Publisher: SCEI | Genre: Racing | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=EPdgpkrV5vM&hd=1
Escape Plan | Developer: Fun Bits | Publisher: SCEI | Genre: Puzzle | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_35_esc
Malicious | Developer: Alvion | Publisher: SCEI | Genre: Action/Adventure | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=vvSINYYkAVE&hd=1
Ragnarok Odyssey | Developer: GameArts | Publisher: GungHo | Genre: Action | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_07_ro
Hustle Kings | Developer: VooFoo | Publisher SCEI | Genre: Billiards | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=-tRFuMWcPRw&hd=1
Silent Hill: Book Of Memories | Developer: Wayforward | Publisher: Konami | Genre: Action | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=go7v5k0oQDE&hd=1
Little Kings Story | Developer: Marvelous | Publisher: Konami | Genre: Action RPG | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_23_sou
Reality Fighters | Developer: Novarama | Publisher: SCEI | Genre: Fighting | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_36_rfig
Asphalt Injection | Developer: Gameloft | Publisher: Ubisoft | Genre: Racing | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_24_aij
Super Monkey Ball | Developer: Sega | Publisher: Sega | Genre: Action Adventure | Release Date: TBA
http://tgs.playstation.jp/lineup/vita/#MVP_19_smb
Sumioni | Developer: Acquire | Publisher: Acquire | Genre: Action | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_29_sumi
Ninja Gaiden Sigma | Developer: Team Ninja | Publisher: Tecmo Koei | Genre: Action | Release Date: TBA
Trailer: N/A
DJ Max Technika | Developer: Pentavision | Publisher: Cyberfront | Genre: Music | Release Date: TBA
Trailer: N/A
Unit 13 | Developer: Zipper Interactive | Publisher: SCEI | Genre: Third Person Shooter | Release Date: Q1 2012
Trailer: www.youtube.com/watch?v=Ky8h0uivF7M&hd=1
Motorstorm RC | Developer: Evolution Studios | Publisher: SCEI | Genre: Racing | Release Date: 2012
Trailer: www.youtube.com/watch?v=cASfalm5OV4&hd=1
Putty Squad | Developer: System 3 Arcade Software | Publisher: System 3 Arcade Software | Genre: Platformer | Release Date: TBA
Trailer: www.youtube.com/watch?v=6F3QEQId3HQ&hd=1
Tales From Space: Mutant Blobs Attack | Developer: DrinkBox | Publisher: DrinkBox | Genre: Puzzle Platformer | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=oI1lce25sHA&hd=1
Gundam Seed Battle Destiny | Developer: Artdink | Publisher: Namco Bandai | Genre: Action | Release: TBA
Trailer: N/A
Notable Games Lacking Vita Version Media:
Zone of the Enders HD Collection
Metal Gear Solid HD Collection
Final Fantasy X HD
F1 2011
Legend of Heroes: Zero no Kiseki
Time Travelers
Mortal Kombat
Especially Notable Logo/Title Games:
Bioshock
Assassin's Creed
Call of Duty
Killzone
FIFA 2012
Level 5's RPG
Cave's New Shmup
Hatsune Miku
Surge Concerto: Ciel no Surge ~Ushinawareta Hoshi e Sasagu Shi~
However, if you would like an exhaustive list, please head here: http://www.scei.co.jp/corporate/release/110914a_e.html
The above link also includes pricing and accessory information, as well as the hardware specifications of the system.
If you want to add games to the list (that have screenshots), please feel free to mention them, but please only mention them if you're personally interested in the games.
2011 Titles (Japan Only):
Uncharted: Golden Abyss | Developer: Sony Bend | Publisher: SCEI | Genre: Third Person Shooter | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_02_unc
Hot Shots Golf 6 | Developer: Clap Hanz | Publisher: SCEI | Genre: Sports | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_01_ming
Ridge Racer | Developer: Namco Bandai/Cellius | Publisher: Namco Bandi | Genre: Racing | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_30_rr
Blazblue: Continuum Shift Extend | Developer: Arc System Works | Publisher: Arc System Works | Genre: Fighting | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_17_bcs2
Ultimate Marvel Vs. Capcom 3 | Developer: Capcom | Publisher: Capcom | Genre: Fighting | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_04_umc
Disgaea 3 Returns | Developer: Nippon Ichi | Publisher: Nippon Ichi | Genre: TRPG | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_15_dis3
Army Corps Of Hell | Developer: Entersphere | Publisher: Square Enix | Genre: Pikmin | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_14_zigo
Lord Of Apocalypse | Developer: Access Games | Publisher: Square Enix | Genre: Action | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_13_loa
Dream C Club Zero | Developer: Namco Bandai | Publisher: D3 Publisher | Genre: Dating Simulator | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_20_dcc0
Virtua Tennis 4 | Developer: Sega | Publisher: Sega | Genre: Sports | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_18_ps4
Dynasty Warriors | Developer: Tecmo Koei | Publisher: Tecmo Koei | Genre: Action | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_08_mso
Katarmari Damacy | Developer: Namco Bandai | Publisher: Namco Bandai | Genre: Action Adventure | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_32_kata
Shinobido 2 | Developer: Acquire | Publisher: Konami | Genre: Action/Adventure | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_25_shi2
LittleDeviants | Developer: BigBig | Publisher: SCEI | Genre: Minigame Compilation | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_34_sawa
Dungeon Hunter Alliance | Developer: Gameloft | Publisher: Ubisoft | Genre: Action RPG | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_12_dark
Michael Jackson: The Experience | Developer: Ubisoft | Publisher: Ubisoft | Genre: Music | Release Date: Japanese Launch
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_11_mje
2012 Titles:
Gravity Daze | Developer: Team Siren | Publisher: SCEI | Genre: Action/Adventure | Release Date: February 2012
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_03_grd
LittleBigPlanet | Developer: Double 11/Tarsier | Publisher: SCEI | Genre: Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_40_lbp
Wipeout 2048 | Developer: Sony Liverpool | Publisher: SCEI | Genre: Racing | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=IvO8T1eG_vU&hd=1
Persona 4: The Golden | Developer: Atlus | Publisher: Atlus | Genre: JRPG | Release Date: Spring 2012
Trailer: N/A
Extreme Escape Adventure: Good People Die | Developer: Chunsoft | Publisher: Chunsoft | Genre: Adventure | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=sHMhHA5a6v8&hd=1
Ys 4 – Celceta, Sea Of Trees | Developer: Nihon Falcom | Publisher: Nihon Falcom | Genre: Action RPG | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_16_ysr
Sound Shapes | Developer: Queasy Games | Publisher: SCEI | Genre: Music Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_38_sou
Dragon's Crown | Developer: Vanillaware | Publisher: UTV Ignition | Genre: Action RPG | Release Date: Spring 2012
Trailer: http://www.youtube.com/watch?v=XBsb5OOwBx8&hd=1
Tales Of Innocence R | Developer: Tales Studio | Publisher: Namco Bandai | Genre: Action RPG | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=lo-CUdAZGis&feature=feedu
Lumines | Developer: Q Games | Publisher: Ubisoft | Genre: Music | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_10_lumi
Street Fighter X Tekken | Developer: Capcom | Publisher: Capcom | Genre: Fighting | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_05_sfx
Ruin | Developer: Idol Minds | Publisher: SCEI | Genre: Action RPG | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=cdUbdn9U7hQ&hd=1
Super Stardust Delta | Developer: Housemarque | Publisher: SCEI | Genre: Twin Stick Shooter | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_37_ssd
Alien Spidy | Developer: Enigma SP | Publisher: Enigma SP | Genre: Platformer | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=yI0V9KmDfMc&hd=1
Rayman Origins | Developer: Ubisoft Montpillier | Publisher: Ubisoft | Genre: Platformer | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_09_rei
Resistance: Burning Skies | Developer: Nihilistic | Publisher: SCEI | Genre: First Person Shooter | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=OtgnNQC2Fss&hd=1
ModNation Racers | Developer: United Action Front | Publisher: SCEI | Genre: Racing | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=EPdgpkrV5vM&hd=1
Escape Plan | Developer: Fun Bits | Publisher: SCEI | Genre: Puzzle | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_35_esc
Malicious | Developer: Alvion | Publisher: SCEI | Genre: Action/Adventure | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=vvSINYYkAVE&hd=1
Ragnarok Odyssey | Developer: GameArts | Publisher: GungHo | Genre: Action | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_07_ro
Hustle Kings | Developer: VooFoo | Publisher SCEI | Genre: Billiards | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=-tRFuMWcPRw&hd=1
Silent Hill: Book Of Memories | Developer: Wayforward | Publisher: Konami | Genre: Action | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=go7v5k0oQDE&hd=1
Little Kings Story | Developer: Marvelous | Publisher: Konami | Genre: Action RPG | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_23_sou
Reality Fighters | Developer: Novarama | Publisher: SCEI | Genre: Fighting | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_36_rfig
Asphalt Injection | Developer: Gameloft | Publisher: Ubisoft | Genre: Racing | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_24_aij
Super Monkey Ball | Developer: Sega | Publisher: Sega | Genre: Action Adventure | Release Date: TBA
http://tgs.playstation.jp/lineup/vita/#MVP_19_smb
Sumioni | Developer: Acquire | Publisher: Acquire | Genre: Action | Release Date: TBA
Trailer: http://tgs.playstation.jp/lineup/vita/#MVP_29_sumi
Ninja Gaiden Sigma | Developer: Team Ninja | Publisher: Tecmo Koei | Genre: Action | Release Date: TBA
Trailer: N/A
DJ Max Technika | Developer: Pentavision | Publisher: Cyberfront | Genre: Music | Release Date: TBA
Trailer: N/A
Unit 13 | Developer: Zipper Interactive | Publisher: SCEI | Genre: Third Person Shooter | Release Date: Q1 2012
Trailer: www.youtube.com/watch?v=Ky8h0uivF7M&hd=1
Motorstorm RC | Developer: Evolution Studios | Publisher: SCEI | Genre: Racing | Release Date: 2012
Trailer: www.youtube.com/watch?v=cASfalm5OV4&hd=1
Putty Squad | Developer: System 3 Arcade Software | Publisher: System 3 Arcade Software | Genre: Platformer | Release Date: TBA
Trailer: www.youtube.com/watch?v=6F3QEQId3HQ&hd=1
Tales From Space: Mutant Blobs Attack | Developer: DrinkBox | Publisher: DrinkBox | Genre: Puzzle Platformer | Release Date: TBA
Trailer: http://www.youtube.com/watch?v=oI1lce25sHA&hd=1
Gundam Seed Battle Destiny | Developer: Artdink | Publisher: Namco Bandai | Genre: Action | Release: TBA
Trailer: N/A
Notable Games Lacking Vita Version Media:
Zone of the Enders HD Collection
Metal Gear Solid HD Collection
Final Fantasy X HD
F1 2011
Legend of Heroes: Zero no Kiseki
Time Travelers
Mortal Kombat
Especially Notable Logo/Title Games:
Bioshock
Assassin's Creed
Call of Duty
Killzone
FIFA 2012
Level 5's RPG
Cave's New Shmup
Hatsune Miku
Surge Concerto: Ciel no Surge ~Ushinawareta Hoshi e Sasagu Shi~