Bullpoopy! It has nothing whatsoever to do with hovering. It's basically a cheaper Segway with smaller wheels and no upright. Another difference between this thing and the Segway is that anyone can use a Segway smoothly almost immediately, while the "hoverboard" requires that you survive its multiple attempts to kill or maim you.
I sneer at you, "hoverboard"!
That got me thinking about the Segway. I've wanted one since they first came out. Are they still making them? Do they still cost as much as a small slightly used car? Answers: Yes, and yes. Also they're so heavy and the wheels on them are so large they can't be put in a car trunk easily, which limits their versatility.
But, wandering around the web looking up deals on Segways, I found a little thing called a QBOT (http://www.discovermymobility.com/store/scooters/greetransporter/q-bot/index.html). It's like a Segway but much smaller than the Segway, a bit slower, weighs only 35 lbs, and isn't so good "offroad". But it's cute! I can get it in pink, which makes it almost theft-proof. And it costs a third or less of the Seqway's price.
I am very very tempted.