Future wheelchairs...

The next generation of electric wheelchairs may not have wheels.

I suppose something like that would make alot more of the world accessable to people who once used wheelchairs to get around. It might even make so the world is even more accesable to them to the lowly folks who don't posess these bionic limbs, like allowing thme to stand taller than the average human, walk faster and farther than the average person, pehers even climb up more flights of stairs, etc.