It turns out Foursquare's massive 5.0 revamp was just the start of the changes, as the location sharing app unveiled a new twist with the launch its Connected Apps platform. Available as a developer preview, it lets the makers of apps like Untappd, Instagram or The Weather Channel connect directly with the Foursquare app. Many apps were already connected via the API, and once users upgrade to the latest version on Android or iOS their checkins pull information from those apps into Foursquare itsel