There are a surprising number of vendors offering an iPhone case that includes a beer bottle opener, but the Opena
model stands out for a few reasons. Rather than have the opening mechanism around the Apple logo on the back of the iPhone case, the Opena has a slide out opener made of stainless steel. This means, when opening a bottle, the pressure is not placed directly on the phone.
As you might expect, they have a free app that lets you keep track of how many bottles you've opened, and you can share that via Facebook and twitter, though your lawyer might advise against this! More features are planned such as a virtual breathalyzer or way to recommend that you take a taxi and even help you find one.