The writing is on the wall. Facebook is the world’s largest social network, and for the first time ever it was the most trafficked web site on Christmas day in the United States. If anyone is poised to make a big move in the location-space in the new year its Facebook.

Facebook is already encouraging members to be more open. They made a bold and controversial move to alter the default settings around status updates in the hopes of making more Facebook updates public and searchable.

In the same spirit of openness, Facebook would certainly profit by implementing opt-in location-aware status updates. Knowing where your Facebook friends are grabbing a cup of coffee or catching a flick is a just as important, if not more so, than knowing that they’re doing it. So in much the same way that Foursquare shows you check-ins from friends and people checked in at venues, Facebook could provide context around status updates in the wild, but on a much grander scale