I went through Nintendo Power and wrote down a list of all the DS games that seem interesting enough to buy. So far I have about 18 games listed.
Established Franchise Games:Legend of Zelda: Phantom Hourglass
Final Fantasy III
Children of Mana
Pokemon Mystery Dungeon: Blue Rescue
Star Fox Command
Dragon Quest Heroes: Rocket Slime
Mario vs. Donkey Kong 2: March of the Minis
Bubble Bobble Revolution
Castlevania: Portrait of Ruin
Lunar Knights (sequel to Boktai)
Meteos: Disney Edition
Phoenix Wright: Justice For All
Original IP:Elite Beat Agents
Hotel Dusk: Room 215
Magical Starsign
Contact
Deep Labyrinth
Touch Detective
And that's just the announced stuff. XD!