The official Project Diva Twitter account has revealed that a copy of Hatsune Miku: Project Diva F is playable at the Sony Computer Entertainment America booth at the Electronic Entertainment Expo (E3). There is currently no word as to whether this means there will be a Western release for the game but this revelation certainly gives us hope! The demo on display is the same one that was previously available at the Nico Nico Chokaigi event.
Also shown is the box art for the PS Vita version. Check it out: