The Amphibian Waterproof Hard Case for iPhone 4 from Proporta is tested and guaranteed to be waterproof to 3 meters. �You’ll be able to take photos underwater, and you can make and take calls while the phone is in the case. �The system consists of a hard polycarbonate case that can be used alone and [...]
Source: http://the-gadgeteer.com/2011/06/20/amphibian-waterproof-hard-case-for-iphone-4/
RACKABLE SYSTEMS QUEST SOFTWARE QUANTUM QLOGIC . PROGRESS SOFTWARE PLANAR SYSTEMS PEROT SYSTEMS