Robert M. Gary wrote:
A keyboard is too clumsy for a cockpit. However, many homebuilds use
PDAs and many certified aircraft owners (including myself) have yoke
mounts for their PDA. The PDA is nice because it doesn't require a
keyboard.

-Robert, CFI (and working software architect).

Also, companies like Logitech are not terribly inept at making
yoke-like controls:

I have no doubt that they could make a new line of models durable
enough for aircraft use.

http://www.logitech.com/index.cfm/do...S/EN,CRID=1788

-Chaud Lapin-