Another avenue for substantial progress in interface design, in the same vein as the article's proposition, is tactile feedback, available today from vendors su

Another avenue for substantial progress in interface design, in the same vein as the article's proposition, is tactile feedback, available today from vendors such as Senseg: http://senseg.com/experience/senseg-demos http://senseg.com/experience/senseg-demos This technology has the capacity to bring us beyond "pictures under glass", and seems ready for integration in today's devices, with proper OS and API support. I could see combining an e-ink display with this kind of tactile feedback surface to replace the user-exposed lower half of a laptop with a device capable of contextual interfaces. Something like this would offer great potential benefits to the user, with no apparent drawbacks.