I do not see anything silly on this. It is not the "Segway killer" but, for many, a nice alternative. If it sells at the foresee price it will have good market.
Yeah, not impossible, of course. I was being a bit silly. I don't feel that the Segway has been a huge success that "needs" to be killed. Granted, the way that verb is commonly used in tech writing is a bit ... weird.
I guess the Ryno looks interesting, although I failed to find the price (or availability information). I'm not at all sure about all the revolutionary talk, that sounds a bit too much like the pre-Segway hype with talk about how city planners will adopt this, and how it will help get people do more face-to-face communication.
ps: Couldn't open the link by OP - maybe there is one. (seems down)