Everybody's favorite dancing robot of questionable utility from Sony is finally making its way across that big wet thing that divides the fair lands of Japan and USA. The Rolly
, in case you missed it, is tiny little wheeled bot that can blast some tunes out of its built-in speakers, move its cute little appendages to the music and spin around for that full-on dancing robot experience. The bot comes with pre-choreographed songs ("Also Sprach Zarathustra," Avril Lavigne's "Girlfriend" and Earth Wind and Fire's "Boogie Wonderland" -- all particular favorites of the Engadget staff), or you can use the choreography software to generate a dance for own tunes, or even program the dance yourself. The 2GB bot comes in black or white, and is available now online or in Sony Style stores for $400.