The real killer application of the album art would be if you could BROWSE by album cover. I don't think they've implemented that. I can do that on my Slimp3 web interface, and I LOVE it. It's like looking through your old CD case... which is one of the hands on things I really missed once going all non-media for my music. I never realized how much I picked an album just by art recognition. Also brings up one of the things i hate about iTunes: you have to store the album art on every song file. If you do artist->album organization like I do, this is super annoying and wastes a ton of space.