Fascinating. And like so many things on the internet, "read with caution."
I also think I have seen studies that showed that his keyboard is NOT actually better/faster that a QWERTY. But then again, why sould I trust those studies?
A few years back i was doing some very in depth research on how the human eye deals with moving images, like movies. after a lot of digging it became clear to me that there was some serious disagreements as to how movie film actually tricks the human eye it to seeing a series of still images as a smooth movie image. We obviously know that they do, but as to how it all works was still a subject of serious debate by serious people. Part of this caused by the fact that we don't deeply understand how our brain processes images.