Check out the Pentax K-x color simulator at the Japanese website (it can be slow to load but responds reasonably quickly once you're up and running). If you're going to offer colors, might as well go all the way....
(Thanks to Oren)
ADDENDUM: Dirk at Japan Exposures confirms that he can arrange purchase of Japan-only colors for those in other parts of the world as part of the Japan Exposures Equipment Sourcing service. Not that it won't cost you.... —Mike
Featured Comment by Stan B.: "Vomit inducing."
Featured Comment by Marlon: "I absolutely love this idea. Lemon Lime flavor."
Featured Comment by Chris: "'She Comes In Colors Everywhere'...except here! I have an 11-year-old who wants a purple one and I would certainly orderly a fun-colored one for myself. Pentax lost two sales, as this option isn't offered to the U.S. (I would have placed an order yes!)"
Featured Comment by Miserere: "When I first heard about the colour plan I thought 'hmmmm...,' but given that it's seriously spec'd for an entry-level, $650-launch-price camera, I think the colours are a fantastic add-on (icing on the cake, as someone already put it). The Navy colour turns out to be slightly metallic (or reflective) in real life and I'm finding it very attractive. Furthermore, it's available for preorder in the US right now and can be bought at B&H."
Featured Comment by Ed Buziak: "I think Pentax are serious about this color program, and for good reason. I read the following on the OK1000 Pentax Blog whose owner (Michael) attended the Pentax Special Launch in New York on the 16th. He wrote '...Pentax received strong demographic numbers that showed that women bought more colored cameras than they would have bought black models. The numbers jumped from a skew of 20% female and 80% male buyers to 50%–50%. Something worth doing on a larger scale.'"
Featured Comment by [another] mike: "Yuck."