On youtube, I found there are a few typing videos that demonstrate the use of some esoteric keyboards.
- Happy Hacking Keyboard Pro 2
- Another Happy Hacking Keyboard Pro 2
- Kinesis Contoured Keyboard
- Touchstream
Additionally, here’s one that demonstrates the “chatter” problem on a Majestouch keyboard (chatter is where the signal transition between a pressed and unpressed key is not clean and stable, thus registering multiple keystrokes in one transition). That’s pretty worrying for a keyboard that claims to be high-end. But it’s only $60 or so, so they must be cutting corners somewhere.