I have one of those. It's a Honda Stream, from about 1983. Apparantly they did not make many as they didn't sell too well. As it hinges in front of the rear wheels/engine it isn't very diiferent to ride from any other scooter, no it wasn't made for old, fat or clumsy people :).
Though I love it dearly I've got to sell it now :(, does anyone have any idea what it's worth?
It's runs fine and is in generally in good nick and all but has a few scratches and stuff. Anyway, if anyone lives near Cambridge, England and wants to get themselves one of these they can email me.