Foursquare for beer. Need I say more? Untapped allows you to “check-in” to the beer you’re drinking. It also gives you the ability to rate that beer and share check-ins with your friends through social networks. They’ve created a native Android application and it all works really well (although we would have preferred a more native application – this one utilizes webview for the entire ordeal.) Find it for free in the Android market. [Market]