Foursquare's updated iPhone app takes on Yelp, adds hidden turbo check-in ... - Apple Insider
 PopHerald.com | Foursquare's updated iPhone app takes on Yelp, adds hidden turbo check-in ... Apple Insider Foursquare's newly updated iPhone app signals a change for the location-based social networking service that will help better position it against Yelp, and also debuts a handy hidden feature that allows power users to check in to locations more quickly. Foursquare For iPhone Updated With New Explore Tab |