I'm not kidding when I say that there are more DS games coming out that I want than any other platform I've ever owned.
Right now, I've got:
Phoenix Wright: Ace Attorney (favorite)
Viewtiful Joe: Double Trouble
Nanostray
Mario Kart DS
Mario 64 DS
Advance Wars: Dual Strike
Kirby's Canvas Curse
Lost in Blue
Tony Hawk's American Sk8land (surprisingly doesn't suck)
Animal Crossing: Wild World
Electroplankton
Trauma Center: Under the Knife
Meteos
Nintendogs
I've got Sonic Rush on the way to me from a friend and I intend to pick up Mario and Luigi 2 at some point.
I also want to (finally) import Quendan and the Eyeshield 21 game (football)
2006 looks huge for me, also.
Eyeshield 21 (Feb 2nd)
Children of Mana (hoping for localization.. JP release is in march)
FF3 DS (better be 2006.. otherwise there will be death)
Lost Magic
Tao
New Super Mario Brothers
Contact (from killer 7 creator)
Super Princess Peach (Feb, I think)
Age of Empires DS (out or will be soon, I think)
True Swing Golf (out)
Metroid Prime Hunters (must buy, online fps for the win

)
Mario Basket 3v3
Guilty Gear: Dust Strikers
Bleach DS (online.. out in Japan already)
I'm sure there are a lot of others that I'm forgetting.. but my wallet cries in pain
