CrashingThunder updates its virtual piano for the DS, "Piano DS.
Current Features
-27 Playable notes
Nice graphics
Planned Features
-Ability to save, load and record songs.
-Volume Control
-Brightness Control
-Slider to move left or right piano for more octaves
Cooler-looking graphics and animations.
Other Stuff
-Please play this on an actual DS if possible. It's much easier to play and seems to respond better, as it's kinda difficult to click really fast notes.