Sony Computer Entertainment and Sega teamed up to make a limited edition bundle for Next Hatsune Miku Project Diva. This package includes a Crystal White PlayStation Vita with an illustration of Hatsune Miku on the back.
Here are some comparison photos with Hatsune Miku and a standard Crystal White Vita.
The package includes a 4GB memory card and a copy of Next Hatsune Miku Project Diva for 39,980 yen ($500) if you want a Vita with 3G support or a 34,980 yen ($437) Wi-Fi only model.
I like Hatsune Miku, but I could never see myself buying this... it's just too expensive (I'm poor).