This is and old post from November last year, but still to the point. The key take away is as great as it is simple. Location is the bridge from social networking to real social activity. With location added in a smart way social networks, games and other apps will reach their full potential. When we can float over to real social interaction from the social network of choice the value of that social network will multiply. That is if you prefer interaction with real humans over screens. Most of us do.