Sony's Rolly

I have no clue what Sony's Rolly is all about. But this secret gadget has its marketing campaign kicked off in Japan. What I understand of this device as seen on videos released on the web, is a music player which dances to the tune of the music and also has interesting controls on this egg shape gadget. We will see more of this in coming days I guess. Until then check the video out and let us know what you think of it.