NotLarry wrote:

This man has an interesting concept of renaming all images on the web with a simple, somewhat addictive game.

This game has been online as Google Image Labeler for some time now ...

It appears to be the same code base:

Q: How was Google Image Labeler developed?

A: Google Image Labeler is based in part on technology licensed from and developed at Carnegie Mellon University.

RE: Human Computation, The ESP Game