Oh man, I really like the new visualizer for iTunes.  It’s like a black hole disco ball.

It’s based on a beta from last year from the Barbarian Group–the clever folks who also made wacky things like the Subservient Chicken.

For those new to Magnetosphere, a quick tip–you can change a lot of the visualization options by pressing the ? button.  I’m sure Apple buried this somewhere in the documentation, but this non-obvious trick gives you some neat variation.