foursquare.com

Food porn social network Foodspotting has arguably been threatened by Foursquare ever since the latter added photos to its check-ins. Dennis Crowley and Foodspotting co-founder Alexa Andrzejewski, "The king and queen of location-based services," as nerd blogger Robert Scoble put it, have been on cautiously friendly terms.

But now Foursquare is making a blatant move into Foodspotting territory with a foodie walking tour for media "where we'll discuss how Foursquare can help you share your expertise on local restaurant favorites, cheap eats, happy hour deals, and more," according to a publicity rep.

The tour runs through the Foursquare-dominated East Village and Soho, stopping at restaurants to find deals. The walk starts at Pulino's on Bowery, where diners must try the baked ricotta. As Foursquare ramps up with more features, visibility and now media walking tours, it's conceivable the start-up may leave us with no reason to open Yelp, Foodspotting or Dinevore again.