[rsaarelm]

I wonder how much help mature 3D printing might be. You could already do a rough approximation of form-fitting case and keys for a one-hand chorded keyboard with today's printers. The microswitches and electronics would be all DIY though.

Looks like the Twiddler site is selling the things (http://www.handykey.com/), but $200 is a lot for a thing I'm not sure would be any better than a regular keyboard. Also, thing like that really should be wireless. I do hope that with the ascent of mobile computing, we're going to see some more innovation with terminal design, since the age-old typewriter television paradigm really doesn't work on the move.

In general, besides RSI, I'm not sure how much the keyboard matters in the end. People who work in the analog, like carpenters, musicians and surgeons, can do better quality work with better quality instruments. But programmers work in the digital, like writers and mathematicians. Mathematicians don't generally worry about how the craftsmanship of their whiteboard markers affects the quality of their work.