I have been enjoying the iPhoto 09 face recognition technology all summer, marveling at it's accuracy in identifying the faces of people I tag in the system. The way it works is you load pictures and click on a button called "faces." The computer finds faces in your pictures. You name some of them and the computer will find additional, similar faces and ask you to confirm the identity. It's been amazingly accurate.
That's just plain rude of my Mac, don't you think?