It's called the iBottle opener protective case, and it sells for 19.95. The 3G / 3GS version is available now. According to the site, the iPhone 4 model will ship on Jan. 14.
Of course, as we've heard, the iPhone 4's glass back can shatter if dropped, or even if it is scratched by trapped particulate matter under a case. It's also more susceptible to physical damage, so we hope the iPhone 4 version of the iBottle opener case is well tested before release.
Where's the Swiss Army Knife version of the case? You can watch a video of it in action below.