Take a look at this link. Move your cursor around and see how her eyes follow you. Read more at this e-clippings blog post, basically it's based on a single normal 2D photo which is then transformed into this fairly creepy avatar.
I keep expecting her to say "boo" any moment....
That's pretty spooky!
Have you see this: http://www.indisys.es/ ?
They have a silverlight version coming too!
It IS creepy, but it's also going to be the chief cause of me getting nothing done today :)