You carry your phone everywhere you go and you should always carry a bottle opener too.  You never know when craft beer may call and you need to be prepared.  With the Opena you get a protective iPhone 4 case along with a great built-in bottle opener.  Made possible by Kickstarter, this retractable bottle opener built-into a protective iPhone case won’t scratch your phone and ensures you’re never without a way of getting at your favorite craft beer.