iPhoto face recognition, the verdict
Having used iPhoto 09 for a couple of weeks/months now, my verdict is that it sucks. Unless all you have is high resolution, high contrast photos of people taken perfectly perpendicularly to their face, it just doesn’t work. The same applies for people who sometimes were glasses (me for example). If I import a batch of pictures containing only people that I have already added to the database, I would say it gets it right maybe 25% of the time. And that’s provided that it detected all the faces, which it does maybe 80% of the time.