So far Facebook claims that the number of users who have used the Places application is multiples larger than any other location service. That would lead us to believe that well over 10 million Facebook users have checked in with Places. If enough brands begin to leverage the new Deals platform, this could clearly be a big win for Facebook. Most significant here is that Facebook doesn’t charge any companies to launch deals.
With 500 million active user accounts I don’t doubt that Facebook is in a better position than Foursquare and Gowalla to broker better deals with vendor. I just wish I could attach a photo to my checkin.