A visualizer for the iPod? An iPod game from Sony, and Japan's famous Masaya Matsuura? Yes: as the first iPod game from Sony BMG, Musika ($5) is described as an Interactive Visualizer that "taps into your song library to create original game play." With motion (rather than still, easily photographable) 3-D visual effects as art, you're supposed to hit the iPod's center button whenever a character appears on screen from the current song's title --…
