I was just listening to some background ambient music (Groove Salad on Soma FM FTW!) and since I'm not actually typing on the computer for once, I turned on the new iTunes 8 visualizer for kicks.
Fantastic graphics. Just jaw droppingly cool. Think exploding black holes surrounded by suns and stars and cosmic plasma explosions. Yeah, and that really doesn't do it justice.
And well synced to the music. I've seen some visualizers that seem to have no relation to the music syncopations that are occurring, but this is right on the money.
Everyone is talking about the new 'Genius' functions of iTunes 8. They should be hyping this visualizer too. I just watched it for like 5 minutes with my mind just completely captivated (yeah, that sounds kinda pathetic, but I'm also sleep deprived).
UPDATE: added this graphic, which totally does not do it justice:
UPDATE 2: Lifehacker.com has posted some undocumented keyboard shortcuts that make the visualizer EVEN MORE COOL. How is that possible? Check it out: