Beer lovers with iPhones unite! What you need is the Intoxicase to enhance your favorite pastime. Intoxicase is a system that includes: a sleek iPhone case with a built-in beer bottle opener and an app that does all kinds of cool things. For instance, it detects when the bottle opener is used and makes sound effects, creates a beer log, counts the number of beers and records the time, estimates your blood alcohol level, makes it easy to call a cab, and more. Cost: $25.