Check out the official teaser video for Facebook places. What I really love about it is that it maps exactly to SapientNitro’s PoV on the space-time continuum for experience mapping; in layman terms what we believe is that every moment should cross space and time. A moment crosses spacewhen multiple people in different locations can live the same moment .. for example,  you share a live video feed, lifecast, share status updates, photos, and your friends all over the world can interact with this content in real time. A moment crosses time when you can geo-tag content and you can interact with the same content any time in the future when you’re in the same location … or if your friends visit the same location, can could see your previous experiences in that place.

Everything we do, we do with a mindset of digital amplification through space and time … and Facebook places is just, exactly, that. This can really be huge.

Why to Check In? by Facebook.