Filed under: CellphonesPlenty of waterproof phones and other small weatherproof devices have made it off the assembly lines and into our clumsy clutches, but P2i, a small spinoff company using tech originated within the Defence Science and Technology Lab in England, could be bringing waterproof gadgets to the masses. The Ion-Mask is a special invisible coating that is chemically bonded to the device and repels water. It should allow waterproofing to make it into devices that are too s