Queen > U2. I do hear ya there.
Some people glorify Bono, some people think he's just some guy playing Jesus out in Darfur saving people that no one in the real world knows exist. For example:
Nothing like a good sacrelgious picture to get my day going, I say.

I'm sorry I had to. Personally I just think Bono's funny. I like their music to a point, but Bono provides me with entertainment. Sunday Bloody Sunday, and New Year's Day are about the only 2 songs I really like from U2, and their work with Green Day wasn't so bad...
Anyway!
Back to the iPods, I can see either 2 colors on the Nano in 2 forms. Either the front and back are different colors, or the back stays chrome and the 2 different colors are the anodized face and the click wheel, like the U2 iPod, which I won't lie - I lust.