As far back as 2000 BC, humans have been busy inventing a variety of tools to help steer us in the right direction. From the astrolabe to the kamal to global positioning satellites, there’s been plenty of progress — though now navigating across town is a more common than navigating across the ocean. We’re pleased with our own small role in the evolution of locationating, since our free iPhone app is the first to fully integrate with the Foursquare API, with plenty more bells and whistles on the very near horizon. Why not download it now? Meanwhile, let’s take a look back at just how far we’ve come.