ironic that i had this same revelation today. i was thinking of NDS games i would like to see, and a slew of sega rpg's (shining the holy arc being one), nights, and shinning force 3 (with all 3 chapters) sprang to mind. then i found myself amazed that sega had announced so little for either platform, especialy with the amount of support they gave n-gage's launch.
and why hasn't nintendo ported mario paint yet? and no company has ported a casino & board game collection that uses the touch screen.