Are all of the 'exotic' keyboards designed for people who use the home row, or do they work for other styles, too? I type primarily with two fingers, employing the others for particular keys according to muscle memory, and do it faster than most touch typists (>100 WPM). Never knew whether that would translate to one of these other form factors.
It certainly doesn't help with transitioning to alternative layouts. I found my touch typing improved dramatically when I started using ortholinear and vertical stagger keyboards that force you to really use the "right" fingers
