Molded-in color is a far cry from a cheesy paint job. I hope that Apple do something like this, or anything different. Mac cases these days are dull, dull, dull, dull, dull, boring, monotonous, every one alike.
I thought very hard about sending my iBook in for a Carbon paint job from colorware...been checking out their stuff for over a year. Have not seen any reports on how the paint holds up. I would be worried about chipping it given the way I abuse my iBook!