Project Diva is a Hatsume Miku PSP game :)
It's some sort of Guitar Hero like game, you have to tap on button in rythm while Miku sings and dance :D It's kind of hard though, or I'm just a noob :darn
And here is my Miku in her room, haven't unlocked any new costume though :(
http://img21.imageshack.us/img21/7373/pjd0005.jpg
http://img79.imageshack.us/img79/2830/pjd0003.jpg
http://img509.imageshack.us/img509/9341/pjd0004.jpg
Official website : http://miku.sega.jp/
