If you’ve got $400 to spend and you’ve already purchased your Eee PC and a PS3, then perhaps you’d be interested in the Sony Rolly. What apparently is the most shortsighted and expensive gadget to hit the shelves since gas prices were under $3 per gallon, this 2GB MP3 player boasts one unique ability.

IT CAN DANCE.

Apparently, it has it’s own unique choreography software installed with it to give you some custom dance moves depending on the song playing. Don’t expect this device to serve any other purpose though, as it’s missing a headphone jack and it also has less storage space then your cellphone probably does.

Tags: choreography, mp3 player, sony rolly