This article is from the Ergonomics and Typing Injury FAQ, by Dan Wallach firstname.lastname@example.org with numerous contributions by others.
P.O. Box 66
Christiansburg, VA 24073 USA
$495 + shipping. 60 day lease for $35.
PC, Mac, IBM 3270, Sun Sparc, and TeleVideo 935 and 955.
Doesn't use conventional push-keys. Soft rubber keys, which rock forward
and backward (each key has three states), make chords for typing keys.
Learning time is estimated to be 2-3 hours, for getting started, and maybe
two weeks to get used to it.
Currently, the thumbs don't do anything, although a thumb-trackball is in
The company claims it takes about a week of work to support a new
computer. They will be happy to adapt their keyboard to your computer, if
(a picture of the chording patterns is also available)