There's a good reason Foursquare has an Overshare badge. Still, that hasn't stopped the location service from rolling out an update to Android users that simplifies broadcasting your position to the world. The Android check-in screen now matches that of the iOS app with a more streamlined appearance that more quickly shares updates with Facebook and Twitter; mentioning friends is easier as well. As long as your social circle doesn't mind knowing that you checked into three different dance