Here is the foldable sketch kb_fig1_2.pdf mentioned in the last note
in a place where you can see it without joining this group:

http://chordite.com/kb_fig1_2.pdf

IMHO it's important that wearable keyboards go away somehow, as into a
pocket, when not in use. In fact the entire wearable computer needs
to be as stealthy as possible.

If two competing wearables are equal in every way except one is less
geeky then it will be very hard to sell the geekier one even to us geeks.