Perhaps you've heard: Facebook just released their new location feature called Places. If not, we have about a dozen posts about it that we recommend. But the obvious next question is what this means for those already in the space -- and specifically the current buzz leader, Foursquare . Sure, they're partnering with Facebook on the API launch, but are they in trouble? They don't seem too worried about it. Instead, it's expansion time. Foursquare is on the verge of opening their first office outside of their New York City headquarters, we've confirmed with the company. Shortly, they will open an office in San Francisco's SoMa district. Both new Foursquare VP of Mobile, Holger Luedorf (who was on-hand at the event tonight), and VP of Business Development, Tristan Walker , will be based out of that office, we're told. And they hope to hire a couple more people to work there soon too.