[btbuildem]

I wonder how that interacts with being visually immersed in a VR environment. The walker will have no momentum, but still go through the motions of walking -- the visual feedback won't align with that of the inner ear.

Maybe the next step is to put the rolly floor on a platform that can be dynamically angled away from horizontal, effectively creating a pitch that makes the person feel like they're leaning (well, they would be leaning) and that might be enough to fool the inner ear? Gravity and acceleration are pretty interchangeable after all.

[coffeebeqn]

Also what if you walk into a virtual wall? Is there some collision detection and can it force you to stop somehow

[btbuildem]

Full-body haptic? Ha, we're yet to see that. Maybe with really powerful, quick-acting fans?