That's why it isn't all arm waving. If it was just arm waving, I would also be quite uninterested.
In one demo I watched, someone used a paint brush instead of his fingers to draw on the screen, and the output was exactly as though he was using it to paint for real - with the same smooth effect and shapely ends that you get from a quick brush stroke.
The idea of connecting devices under one interface with one single optical input is neat, and in the case of digital cameras (Picture Transfer Protocol), very possible in a generic way.
In one demo I watched, someone used a paint brush instead of his fingers to draw on the screen, and the output was exactly as though he was using it to paint for real - with the same smooth effect and shapely ends that you get from a quick brush stroke.
The idea of connecting devices under one interface with one single optical input is neat, and in the case of digital cameras (Picture Transfer Protocol), very possible in a generic way.