The newest wonder substance of science is "graphene" which is posited to replace silicon, touchscreens and to extend battery life. Now, Physicist James Dickerson and a team of researchers at Vanderbilt University have created two ways to apply it in thin sheets that either make them super-hydrophobic or super-hydrophilic and make water bead up and run off or spread out and form incredibly thin sheets. If commercially viable you can say goodbye forever to the need to Rain-X your windshield.
[Graphene-info.com via engadget]