We've covered Colorware's professional gadget painting in the past—and were more than satisfied after seeing their work close up, but their latest iPod coloring seems to be more than just cosmetic. The iPod Touch 2G color-coats the shiny silver metallic back with a color layer, which most likely handles fingerprints and scratches better than the original surface. They also paint iPod Nano 4G and iPod Classic as well as iPhone 3G, so you've got options on those devices as well. The process is not all that cheap ($125 to send yours in), but it's definitely worth it considering that they do a great job and you'll be using these gadgets for years. [Colorware]
Seeing this I'm tempted to follow the take apart guide on iFixit to remove the back of my new iPod touch and taking it to my local spray shop- they've got the equipment and automotive candy/metallic sprays and could apply high gloss protective clear coat and I know it wouldn't cost anywhere near $125 for the effort.
Might even take my old iPod 3G's back off and practice with a can of high gloss spray paint and a good old fashioned rub down between coats with wet/dry sandpaper- building up the layers to achieve a deep mirror like coating.
Did it a few years ago on some speakers I made- 8 coats of high gloss black spray paint and 10 layers of yatch varnish to achieve a smooth piano black lacquer finish