An Israeli outfit called On Track Innovations (nasdaq: OTIV - news - people ) has developed chips that carry biographical and biometric data to beinsertedin ID documents.
Here's where it gets weird: the kickstand on the back of the dock is removable, and can beinsertedin one of two ways (again, to support the tablet in landscape or portrait mode).
Each one is stuffed with several hundred tiny glass spheres or shards, of random size and glued in place in a random pattern so that each token, which can beinsertedin a credit card, is unique.