By Evan Ackerman
The Optimus keyboard is pretty and all, but it’s awfully flat and keyboardy. The Zen Sandbox PC may be monochrome, but it uses some kind of conceptual “z-axis” electronic surface to create dynamically tactile 3D features that the user can manipulate.
The Zen is designed for the visually impaired, since it would be able to display braille, or a textured simulation of your computer desktop. You can also turn it into a piano, or a xylophone, or just about anything else you can imagine. At the moment, though, you’ll have to imagine the Zen too, because it and the technology that powers it are still just a concept.