This autonomous concept vacuum, called the Dust Ball, rolls about the room thanks to an internal motor that constantly shifts its center of gravity. Instant motion! Too bad the spherical shape means it can't vacuum near walls... More »

Read more: http://feeds.gawker.com/~r/gizmodo/full/~3/2JJGI3i-eeE/the-dust-ball-the-perfect-robot-vacuum-for-rooms-without-walls