Foursquare's updated iPhone app takes on Yelp, adds hidden turbo check-in ... - Apple Insider

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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 TabPopHerald.com

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