The scratch-resistant mineral coating (read: not Gorilla Glass) laid atop the display does a fine job protecting the glass from in-pocket abrasions -- not that we Engadget staffers are in the habit of abusing precious mobile kit.
Germany's Nanogate Technologies GmbH is using nanotechnology to produce a coating about 100 nanometers thick that renders surfaces such as tiles and sinks stain- and scratch-resistant, and markedly easier to clean.