Tactus Technology, a small start-up out of Freemont, CA, made a big splash at this year's Society for Information Display (SID) conference. The company, which came to Boston, MA toting a single product, showcased an early prototype of its morphing touchscreen display. The screen, which looks and acts like all other smartphone and tablet displays, has a very special and unique feature: it can dynamically create and remove tactile keys on demand. Tactus utilizes a specially designed window that sits directly on top of a display's touch sensor -- which we're told can be fitted to almost any
