Most people don't know Dean Kamen's name, and if they do, it's probably because they've heard of, seen and/or ridden a Segway Personal Transport. (And man, it that one cool piece of technology...)
But Kamen is a rarity in the world today, a big thinker and a big doer. And when you mesh that in with the fact that he seems to have a big (and soft) heart, he comes up with this.
It's just unfortunate that there's a single factor that's influencing the spike in people who need such a device.