OtterBox, known for its waterproof protective cases, has informed iLounge that it is hard at work on the OtterBox for iPhone. The case will feature three layers of protection, and the phone will remain protected at all times, thanks to a patented touchscreen membrane that allows full use of the iPhone’s multi-touch interface while still in the case. All buttons will be protected and useable via pass-through buttons, and the Dock Connector, silent/ring…