foursquare switched to OSM last year after google changed its maps API pricing: http://blog.foursquare.com/2012/02/29/foursquare-is-joining-the-openstreetmap-m

foursquare switched to OSM last year after google changed its maps API pricing: http://blog.foursquare.com/2012/02/29/foursquare-is-joining-the-openstreetmap-movement-say-hi-to-pretty-new-maps/ http://blog.foursquare.com/2012/02/29/foursquare-is-joining-...