A real life Eyedropper tool! This is awesome. A pen with a little censor that scans the color of the object you point it at, then you can write in ink that exact color, it's like the eyedropper tool in photoshop outside of the computer.
University of Washington are working on solar powered contact lenses with transparent LEDs embedded onto the lens. This technology could be applied in countless ways, from health monitoring to text translation right in front of the wearer's eyes.