I noticed they did not show how well it worked. When they where doing something, it was always over something that was done, or a still shot. My guess is that it does not work as well as they want you to think it does. Just a guess though.
The app (application) running on the touch-screen device seems to control the width and dithering of the line's characteristics, not the brush. Most touch screens only detect two points of contact, so the dozens of touches by bristles just get "averaged" as a point. Nothing terribly innovative here. This product is for people who feel the need to have a brush as a touch tool.
