Hatsune Miku 2 gives dancing on your Vita new meaning

Why just tap at the screen when playing Project Diva 2nd F? When you you can have a whole bunch of grinning friends round for a dance-a-thon on a giant Vita and the video playing on a massive screen. I've yet to see anyone burst into song or dance playing Hatsune Miku in public, but hey, guess I just live on the wrong continent.