Honestly, I doubt they do. When you set your app or service up to do X, it's really hard to convince people 2 years down the road that you should also use that service to do Y. Foursquare's recent redesign is quite excellent, but in my mind, they are still the "arbitrary check-in/brag" social media service, and my suspicion is that how they will remain in 99% of their users' minds.