I'd like to see dozens running down Market Street

Giant hamster-ball for humans: "Cory Doctorow:


Virtusphere is a giant, human-sized hamster-ball on rollers that stays in one place as it spins. The idea is to let you 'run around' while in your VR goggles without needing a lot of floor-space to accomodate you.

Link

"

(Via Boing Boing.)