FrogPad
One-handed 3x5 USB keyboard with "patented" key layout but no straps. On-line available are a shop, training material and licensing ideas for different devices.
Handykey Corporation
Sells combination of chording keyboard and mouse, called Twiddler, that weighs 4 ounces and fits in the palm of a hand.
Inference Group - Dasher Project
A software solution for entering text by zooming through letters. A graphical demo, versions for different systems and languages and ideas for appropriate input hardware are provided.
Kitty
Typing by touching the thumbs with different fingers and at different positions analog to a normal keyboard. With Flash demo, prototype photos and press overview.
L3 Systems
Manufacturer of a 39-keys wrist-worn PC keyboard as well as customized keyboard controllers.
Lightglove
Air typing by blocking watch-like attached lasers with fingers. Presents some infos on technology, photos and the patent abstract.
Matias Half Keyboard
One-handed keyboard for PDAs and PCs. Special version with straps available. Use is explained in a flash demo and a downloadable one.
NumberPad as one-handed Keyboard
The linux kernel patch (2.2 & 2.4) allows to type two-digit numbers on a number pad to simulate characters and special keys.
Thumbscript
Offers hard- and software solutions for entering text using a thumb-operated 9-keys keyboard.
WetPC
Makes an intuitive human machine interface suitable for wearable, handheld, underwater and mobile computing.
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