The first, and second, Vita color variants are on their way to Japan. This morning, Sony Computer Entertainment revealed the Crystal White PlayStation Vita (in an uncontroversial manner), shipping June 28 in both wi-fi and 3G models. It's like the normal "Crystal Black" Vita, but white.
Sony also revealed the Hatsune Miku Limited Edition, a Crystal White Vita with an exclusive rear touchpad design depicting the virtual idol and singer. This version will ship in Japan August 30 as part of a bundle with the still-unnamed next Hatsune Miku Project DIVA rhythm game. Don't look for that one anywhere outside of Japan; none of the previous Hatsune Miku games on PSP and 3DS have been localized.