E-Ink isn’t really a new technology. Forms of it have been around for over a decade being used in some form of the print industry to create levels of mild interactivity. What I love about the video below is, Grey London and Herb & Spice brand Schwartz have combined it with your smartphone and Bluetooth to create a fresh interactive approach to a poster.  

The assignment was simple, the execution more complex, the result fantastic.  Illustrator Billie Jean was invited to create a visual articulation of what taste might look like. Starting with traditional media he painted the artwork for the poster. The illustration was then digitized, and divided into segments. Segments were printed with an electronic ink and coordinated to a smartphone app that talked to your mobile device using a Bluetooth connection. Your phone literally became the speaker for the poster. The result is a printed, interactive musical instrument.