In large manufacturing plants, maintenance people and others who must zip around from one area to another (often walking a few miles in the plant every day) could find use for these things. Ditto staff in the Pentagon perhaps.
But a widespread, "world-changing" market? I don't see it....
The thing about cars is that they can go great distances if need be, to places not always served by public transport. I.e. if you must go out of town suddenly, in the middle of the night, to visit an ailing family member in a hospital. Or you want to go to a secluded rural lake to go fishing. Or you live in the suburbs and work night shift in the city (or vice versa, as in my case). Or your wife is going into labor and you don't live conveniently near a bus line, or the hospital.... The whole idea of a personal vehicle like a car is ultimately its flexibility--we don't have to conform to a schedule that holds a certain market share, like public transportation must. Of course, I'd be all for a car that ran on cheaper and cleaner power sources--but having a personal reliable transportation device is overall a GOOD thing.
But this scooter ain't it, not for anything over a few miles, or requiring speeds well over normal walking speed.... And right now anyway, it's just a rich man's toy.