Oh patent applications. where creative ideas dance shoulder to shoulder with ill-conceived folly. Which do we have here today. We're not sure. What we are sure of, however, is that someone at Microsoft has applied for a patent that describes a device with two screens. Not that old chestnut, but the second screen being of lower-power, like e-ink, and displaying different information based on the state of the first one (i.e. is it against your face or not.) The not-to-be-trusted images illustrate the second screen covering the back of a device and displaying a clock, or other such user specified info.
Engadget, Microsoft applies for low-powered interactive second display system patent