Piano Fun is a Don't Tap the White Tile-style game for Nokia phones. The idea is to keep tapping the black keyboard keys as quickly as you can, without hitting the white ones.
There are three game modes in Piano Fun: classic, arcade, and timed, although the gameplay doesn't vary much between these. The touch controls are very simple and the graphics are smart, if a little uninspiring. Piano Fun requires a constant data connection to run properly, which is annoying.