App that lets you tell your selected Foursquare friends when you are coming to their locale based on your trip itinerary and gives you suggestions on cool 4Sq venues to go meetup together from the Explore tab while you are there.
Requires both a Foursquare Account and a TripIt account to work correctly. Friends are notified by email that you will be coming to town.
The application retrieves your itineraries from TripIt and displays them for you. From there you can choose to publish your trip to your friends in Foursquare to let them know that you are coming to their location.