So, you don't think that the OtterBox 2600 PDA case will provide enough protection for your iPhone? What you need is something like those incredible cases that roadies use to protect instruments and gear.
TUAW reader Stuart tipped us off to such a case, designed and built by a friend who creates cases for bands. While this isn't the most practical iPhone case, it certainly provides a huge amount of protection. It'll also show a certain amount of panache to carry one of these Brady Cases around, flipping open the latches whenever you need an iPhone fix.
If you're interested in ordering a similar case for your iPhone, you can use this contact form to see if Brady Cases will build a custom one for you. Note that this case is not currently listed on the company's web site as a product offered for sale.