Sony Computer Entertainment has placed mysterious posters in select train stations along Tokyo's Yamanote train line. The posters feature talent Shigeru Matsuzaki and a tiny PlayStation logo.

According to a statement sent out to the Japanese press, Sony will be running the poster ads in Shinjuku, Ikebukuro, Akihabara, Shimbashi, Tokyo and Shinagawa Stations from today through the 27th. Sony also promised that all mysteries will be cleared up on the 28th.

The 28th is a big day for PlayStation Vita in particular, as in addition to Metal Gear Solid HD Edition, the system will see its first color variation, Crystal White.