I created a similar service a while back at http://www.nearbyfriends.com http://www.nearbyfriends.com. Here is a video describing the launch: http://vimeo.com/

I created a similar service a while back at http://www.nearbyfriends.com http://www.nearbyfriends.com. Here is a video describing the launch: http://vimeo.com/15039067 http://vimeo.com/15039067. I later added proximity alerts so you could see when your Facebook friends check in near you. Funny to see Facebook launch a similar "Nearby Friends" three years later.