• by Wayne Friedman , November 15, 2011

Building on its now annual November push for all things green, NBCUniversal's "Green is Universal" effort announced a 'Green Square' app, a green-themed, location-based app for iPhone and iPod touch. 

The Green Square App,  powered by Foursquare technology, will be available in  10 markets, accessed to user-generated tips upon check-in, as well as eco-friendly tips from NBCUniversal talent. 

Users can get site-specific green information and facts about landmarks, parks and restaurants after they check-in.