How great is this? iPhoto '09 will come with support for Facebook but Flickr. With the geotagging feature, Flickr users will be able to see where you've taken your photos. And once you put a pic in Facebook, if someone tags a person in the photo, it will sync with your iPhoto pics so they will get identified as well.
Another neat feature is being able to select a group of people that iPhoto will put in a smart album. All you have to do is drag them into the left column and once you confirm that this is a certain group of people, they will instantly be put in a smart album.