Foursquare is an interesting application. It is relatively a new idea. Increasing number of mobile users using internet (thanks to 3G) and GPS needs new ways of getting most out of their mobile devices. GPS assisted mobile device users benefit of navigation and maps. Foursquare is not about navigation but is about the places you visit. Foursquare user visits different places (cafe, bar, restaurant, airport, etc) and comments on the service quality, foods, beverages, etc. The more you visit the same place, you become the mayor and might get special offers and discounts.
