The webpage is a discussion board for Foursquare developers. The main point of conversation is the announcement of Foursquare's first ever developer meetup in New York City, taking place on February 5th, 2011. There are also suggestions for having the event in San Francisco/Silicon Valley.
RT @naveen: save the date: the first ever foursquare hack day is coming to new york city on saturday, february 5th.
http://groups.google.com/group/foursquare-api/browse_thread/thread/5e1ae308bcbeb977