This article is from the Ergonomics and Typing Injury FAQ, by Dan Wallach email@example.com with numerous contributions by others.
DataHand Systems, Inc.
10789 North 90th Street
Scottsdale, Arizona 85260-6727 USA
$995/unit (1 unit == 2 pods). Lease options available. ([new]
PC, Mac, RS/6000, Sparc, IBM 3270
Each hand has its own "pod". Each of the four main fingers has five
switches each: forward, back, left, right, and down. The thumbs have a
number of switches. Despite appearances, the key layout resembles QWERTY,
and is reported to be no big deal to adapt to. The idea is that your hands
never have to move to use the keyboard. A finger-mouse is also built-in.
(a picture of the key layout is also available)
(see also: datahand-review, written by Cliff Lasser <cal@THINK.COM>, on
the ftp.csua.berkeley.edu archive)