Johannes Gutenberg might have judged the folks at Zink Imaging as heretics. After all, they have removed ink from the publishing process, eliminating what has been a fundamental element of printing since the first Bible rolled off the press in 1456. Instead, the scientists at the Waltham, Mass., firm focused their genius on the other key part of the printing paradigm -- paper.
At the annual DEMO show, breakthrough technology ideas (along with some wannabes) go public: Two of the coolest hardware ideas from this year's show have unlikely names: Zink and Dave. Zink lets you print without ink, and Dave puts 10- to 20GB in your pocket for storing music and photos.