[UPDATE] Even more games have been revealed via the E3 2010 Press Kit:

Nintendo
• Animal Crossing
• Kid Icarus: Uprising
• Mario Kart
• nintendogs + cats
• Paper Mario
• PilotWings Resort
• Star Fox 64 3D
• Steel Diver
Activision Publishing
• DJ Hero 3D
AQ INTERACTIVE
• cubic ninja
ATLUS
• Etrian Odyssey
• Shin Megami Tensei
• Shin Megami Tensei: Persona
• Shin Megami Tensei: Devil Survivor
Capcom
• Resident Evil Revelations
• Super Street Fighter IV 3D (name not final)
Electronic Arts
• FIFA Soccer
• Madden NFL
• The Sims 3
Gameloft
• Asphalt GT
Harmonix
• Music Game
HUDSON SOFT
• Bomberman franchise
• DECA SPORTS franchise
• KORORINPA franchise
KONAMI
• Baseball franchise
• Contra franchise
• Frogger franchise
• Hideo Kojima's Metal Gear Solid Snake Eater 3D "The Naked Sample"
• PRO EVOLUTION SOCCER franchise / WINNING ELEVEN franchise
LEVEL-5
• Professor Layton and the Mask of Miracle (name not final)
Majesco Entertainment
• BloodRayne: The Shroud
• A Boy and His Blob
• Face Racers: Photo Finish
• Lion's Pride: Adventures on the Serengeti
• Martha Stewart
• WonderWorld Amusement Park
Marvelous Enteratinment
• BOKUJYOUMONOGATARI 3D (name not final)
NAMCO BANDAI Games
• Dragon Ball franchise (name not final)
• Gundam franchise (name not final)
• PAC-MAN & GALAGA (name not final)
• RIDGE RACER (name not final)
• Super Robot franchise (name not final)
ROCKET
• Crash-City GP
• VS-robo
SEGA
Sonic (name not final)
• Super Monkey Ball (name not final)
Square Enix
• CODENAME: Chocobo Racing 3D
• Dragon Quest franchise
• Final Fantasy franchise
• Kingdom Hearts 3D (name not final)
Take-Two Interactive
• Carnival Games franchise
TECMO KOEI GAMES
• Dead or Alive 3D (name not final)
• Dynasty Warriors (name not final)
• Ninja Gaiden (name not final)
• Samurai Warriors 3D (name not final)
TOMY
• Lovely Lisa 3D
• Naruto Shippuden Action
THQ
• de Blob 2
• Kung Fu Panda Kaboom of Doom
• Marvel Super Hero Squad Infinity Gauntlet
• The Penguins of Madagascar
• Puss N Boots
• Saints Row: Drive-By
Ubisoft
• Assassin's Creed: Lost Legacy
• Battle of Giants: Dinosaur Strike
• Driver Renegade
• Hollywood 61 (name not final)
• Tom Clancy's Ghost Recon
• Tom Clancy's Splinter Cell Chaos Theory
Warner Bros
• Batman franchise
• LEGO franchise