cool app for your Mac

Type star is a lyric visualizer created by Scott Garner that renders lyrics of a song in realtime according to a number of preset visualization schemes.
Application is available as Mac, Windows and Linux download.
(via creativeapplications.net)

I think this application is a brilliant design due to the fact that it communicates with users through multiple senses such as sound, visual as well as the movement that is created by the animation.