Facebook is neat, but really, you can’t literally connect with your friends there no matter how hard you try! If you want a service which allows you to find out where your friends REALLY are, then this may be the app you are looking for!
Of course, you also have to have your other “connection” install the app on their iPhone and accept your invite. But once they do, you will know exactly where the other person is currently standing or where they’re currently going. Thankfully, the potential for abuse is mitigated with the option to share your locatin to your connections for only a limited time. You’ve been asking for an alternative to Facebook for a long time, so here it is with this app!