The 3DS turns all rosy-cheeked in Japan this fall.
http://www.nintendoworldreport.com/news/27811
Nintendo will release a new hardware color variation, Misty Pink, on October 20 for 15,000 yen. Once released, that will bring the number of color variations released in Japan to four – Aqua Blue, Cosmo Black, Flare Red, and the new Misty Pink.
There is no word yet when or if this new color will appear outside of Japan, however, last week Nintendo did announce a "Metallic Rose" colored DSi XL for North America would come out in September.