The titles are the following:

  • Avatar: The Last Airbender
  • Blazing Angels: Squadrons of WWII
  • Blitz: The League
  • Call of Duty 3
  • Cars
  • Dragon Ball Z: Budokai Tenkaichi 2
  • Dragon Quest Swords: The Masked Queen and the Tower of Mirrors
  • Elebits
  • Excite Truck
  • Far Cry
  • GT Pro Series
  • Final Fantasy Crystal Chronicles: The Crystal Bearers
  • The Legend of Zelda: Twilight Princess
  • Madden NFL 07
  • Marvel: Ultimate Alliance
  • Metal Slug Anthology
  • Metroid Prime 3: Corruption
  • Monster 4x4 World Circuit
  • Need for Speed: Carbon
  • Open Season
  • Rayman Raving Rabbids
  • Red Steel
  • SpongeBob SquarePants: Creature from the Krusty Krab
  • Super Monkey Ball: Banana Blitz
  • Tony Hawk's Downhill Jam
  • Trauma Center: Second Opinion
  • Wii Sports

The xbox 360 launched with 18 titles, and 11 of them where sports game, and the PlayStation 3 only have 15 confirmed launch titles.
Of course we'll also get titles after the launch, Super Mario Galaxy, WarioWare, Fire Emblem, Prince of Persia, Sonic, and Super Smash Bros. Brawl will all be released in the months after the release, so we have a lot of games to look forward too.

[source nwizard.com]