read at Los Angeles Times:
"The soon-to-be-released iPhoto '09 incorporates signature features of each social networking website. Users will be able to tag faces in photos and view all their pictures of a particular person, just like on Facebook. And like Flickr, the software also will use GPS data recorded by some cameras (the one on an iPhone, for example) and display the location they were taken on a Google map.
The faces and places data carry over to images uploaded to Facebook and Flickr, respectively."