Magnetosphere is a plug-in visualizer for iTunes. It’s pretty wonderful actually. i would even call it mesmerizing. You can get it for free at barbarian software
On flight404, Robert Hogin’s blog, he talks about the mechanics, inspirations and shows some more wicked imagery.
He tells me that this is what a mode in verison 2.0 of the plug-in will look like.
Well, we all hope so