[mncharity]

> I was thinking about touch sensitive surface that recognizes drawn glyphs.

I'd like a touch sensitive surface... on a keyboard.

Consider an expert keyboard user. With a nice keyboard. Adding downward-facing hand tracking, such as a head-mounted Leap Motion, adds value. Now you can gesture on the keyboard, and above it in 3D. Permitting a very rich input vocabulary. And, for example, using the entire keyboard as a touch surface. Except... while fingers are highly sensitive to tactile contact, neither traditional keyboards, nor current hand tracking, can provide good contact information. Finger-tip position tracking isn't quite good enough to infer contact existence and pressure. So while you can use say the J-key keycap surface as a trackpad, and even infer touch-untouch events from gross finger motion (better than requiring a keypress, but not by much), you still can't get light-touch events (eg "I was clearly pressing harder when I stroked down, but just skimming when I moved back up - I clearly felt the difference, so why didn't the keyboard?") So, I'd love a contact sensing mesh which could be laid over an existing nice keyboard, without compromising key feel. I can get position information elsewhere, and keypresses from the keyboard of course, but there's no existing source of multitouch contact, let alone pressure. Any ideas?