includes the characters of the alphabet and four arrow keys, which are chorded in various ways to reach capital letters, numbers, function keys and so forth.
The thing that baffles me about this is this: if you’re going to have to go to the trouble of remembering many different key combinations and a radically different from the usual keyboard layout, why not also drop the querty key ordering for a more sensible one whilst you’re at it? You’ll have to learn how to use this keyboard anyway, why not go one step further?
For example:
