Apple buys face recognition company Polar Rose

You should watch the demo of their product. This is like the future Cory Doctorow spoke about in "Down and Out in the Magic Kingdom." Augmented Reality overlays business cards, presentations, twitter and facebook feeds, last.fm playlists, and other data around people's faces.

Combine this future with the eyePhone episode of Futurama and pretty soon you have "whuffie" numbers showing up in augmented reality next to people in the real world.

http://en.wikipedia.org/wiki/Down_and_Out_in_the_Magic_Kingd... for more details.

I'd very much be interested in seeing this come to OS X login. I know it might be a bit cliched, but I think this would be pretty great, integrated with multiple logins, etc. Would also go well with a future camera bearing iPad.

It would be cool if iPhoto auto tagged your photos.

It'd be cool the feature which does that in iPhoto and Aperture worked better - it's not bad, and the Facebook integration is nice, but it's definitely still more work than it could be.