Foursquare CEO Dennis Crowley revealed his vision for the future of the location-based check-in and recommendation service at this year’s Mobile World Congress. Crowley said the company is working on ways of using customers’ data to automatically alert them of places and events in their vicinity that they’re likely to be interested in. “It’s taking all the data we have and trying to make a way to make people passively aware of all the things that are going on without having to be in the app all the time… We’re enabling people to cut through this data stream in a way that I don’t think anyone has done before.”