In Pictures: 15 coolest gadgets at Macworld/iWorld Expo

The Macworld | iWorld Expo in San Francisco is an Apple lover's Disneyland. Ashton Kutcher kicked things off by plugging his movie "iJobs," but the main attraction is the showroom floor where vendors display their wares, everything from iPad and iPhone add-ons to iOS apps to Apple enterprise gear.

Intoxicase

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.

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