In 2009, Foursquare launched aiming to help people do two things: to help people keep up and meet up with their friends and to discover great places. Over time, Foursquare realized that when people opened their app, they were almost always doing just one of those things. So in May, Foursquare announced thatthey will unbundle these two experiences into two separate apps– the Foursquare app and a new app called Swarm.Swarmis a dedicated check-in app that is specifically designed to be the fastest way to keep up and meet up with your friends. And today,Swarm is now available for Windows Phone devices.