> you really want to be able to see through your fingers As when graphic artists draw on, and interact with, a tablet, while watching a screen, rather than usi

> you really want to be able to see through your fingers As when graphic artists draw on, and interact with, a tablet, while watching a screen, rather than using a tablet display. Similarly, while I enjoy the feel of a thinkpad keyboard, I do wish it did whole-surface multitouch and stylus and richly dynamic UI as well. So I tried kludging a flop-up overhead keyboard cam, and displaying it raw-ish as a faint screen overlay, depth segregated by offsetting it slightly above the shutter-glasses-3D screen. In limited use (panel didn't like being flickered), I recall it as... sort of tolerable. Punted next steps included seeing if head-motion perspective 3D was sufficient for segregation, and using the optical tracking to synthesize a less annoying overlay. (A ping-pong ball segment lets a stylus glide over keys.)