All those knocking the Wii's third party support forget the key fact that discards and destroys any argument they care to muster: Fatal Frame IV = automatic win.
So here's a list of the third party stuff on the way for the Wii that we know of so far. I have probably missed a few games:
Tales of Symphonia 2
deBlob (Jet Set Radio with a blob basically. Will be an oustanding game)
Tenchu 4
Fatal Frame IV
Final Fantasy Crystal Chronicles 2
The Conduit
MadWorld
Sonic Unleashed
Deadly Creatures
Fragile
Dokapon Kingdom
Rune Factory Frontier
Final Fantasy Fables: Chocobo's Dungeon
Monster Hunter 3
Elebits 2
Monkey King 2 (2D arcade shooter, exclusive)
Shiren the Wanderer 3
Spyborgs
Castlevania (latest rumblings pretty much confirm it)
Brothers in Arms
Sky Crawlers
Prince of Persia Wii
Dance Dance Revolution Hottest Party 2
Drawn to Life
Ghostbusters
Monster Lab (screens are surprisingly impressive)
Mushroom Men
Sadness
One Piece: Unlimited Cruise 1 and 2
Raving Rabbids TV Party
Red Steel 2
Samba de Amigo
Rock Band
Sam and Max
SimCity Creator
Skate It
Soul Eater: Monotone Princess
Spore
Sword of Legendia
Star Wars: The Clone Wars
Rygar
The list is improving all the time imo. Lots of different stuff.