MatrixJam is an iTunes visual plugin that shows the matrix code move to the song's spectral data.
What's new in MatrixJam
Version 0.02a contains a completely new matrix code renderer. Code is now 3d and thicker, blurring has been totally eliminated. The matrix code also rotates in 3d space and has different density settings. Also includes a machine world view (golden, motion blur) inspired by the latest movie. And a new disclaimer: this is NOT an EXACT duplication of the falling matrix code, but rather my interpretation. This has been tested only on a 400 MHz powerbook and Mac OS X 10.2.8.