The Snow Lizard AQUA TEK S is, without a doubt, the most interesting rugged iPhone case I have seen in a long, long time. There are a few things that separate this Kickstarter project from the ever expanding rugged case pack: it is waterproof (up to 20 feet), it has an on-board battery pack, and there is a solar charger built into the back of the case.
The trade-off, obviously, is size – this thing looks like an old-school Game Boy – but in spite of all that plastic, you can still get to the touch screen, all of the control buttons, and the camera still works. Finding a dock that fits with it in the case might be a struggle, but that is the price you pay.
Price: $100 (Kickstarter contributions start from $25) [Slashgear]