How many of us actually catch up with our facebook friends who are not already part of our friend circle? Yet, your facebook friends list is already packed with people who you know (some well. some not so well). So it's a great place to start to expand your social circle and do stuff with people outside your usual groups of friends. The point of the app is to get people to meet up face to face, and your phonebook/facebook contacts are a good place to start, right?