Facebook has announced they are launching a Foursquare competitor called Places. Places is designed for three things, to help you see where you are, help you see who's around and help you see what's going on nearby.
You can check in to your location and tag your friends with you. Places will automatically check you in and create a news feed story showing where you are. Facebook has also created an API for access to Places and Gowalla is the first partner to use it. Rumor has it Foursquare and Yelp are also interested in using the API.
Places is available now for the iPhone, via an application update, and in Facebook's mobile website for advanced mobile devices
