there's eight images for one icon.
Still an interesting concept though.
Well, .icns format for Macs is seven, so no big deal. What I'm more worried about is overdoing it with eight separate divs, guessing it would be simpler with a PNG or SVG sprite that changes
Are we really gonna have this whole discussion and not mention Iconic? http://useiconic.com/
Interesting. Definitely helps with recognition at small sizes.