It's been a long time coming, but Apple's latest pro photo software, Aperture 3, is here. Apple's claiming over 200 new features, pulling in iPhoto stalwarts like Faces and Places, and new slideshows with HD video.
Faces and Places work just like iPhoto, using face detection and tagging, so you can organize photos by people or by where you took them, though now it uses thumbnails of photos that you can actually drag-and-drop photos onto a map. It's the same Faces engine, but you can restrict face recognition to particular projects, instead of having it scour your whole library. With Places, it works with GPS trackers in a pretty neat way: When you import your tracklog, all you have to do is tell it where the first photo was taken, and then using timestamps, it'll automatically plot the rest.