M-Edge has announced the Guardian, a waterproof, floating case for all Kindles with 6″ displays. The case is made of molded, transparent polycarbonate. The navigation buttons and keyboard are available through flexible, sealed cutouts, and there is an anti-reflective film over the screen to allow reading in bright sunlight. Gaskets and a dual-hinge, 4-closure system make the Guardian safe in up to 1 meter of water. Internal bouyancy chambers make the case float upright, so you can read handsfree. The front of the case is clear, of course, but the back of the case will come in five colors. It’s not available right now, so I don’t know a price. M-Edge has a contest now so you can win your own Guardian – read about it at M-Edge.