Sega opened a teaser site today for what appears to be a new project in the Hatsune Miku series.

The site is located off Sega's Hatsune Miku portal and shows the familiar figure of vocaloid Hatsune Miku herself. Text at the site says "New Project (tentative name) Starts on 4/28."

Could this be our first hint at a new Hatsune Miku game?

From the arcade version of Hatsune Miku Project Diva.

Sega has thus far released three Hatsune Miku rhythm games, two on PSP and one in arcades. The PSP titles have paid companion apps on the PS3 which allow them to be played in HD on televisions.