Hi,

here are some videos and a live demo (although they are just using wikipedia and not the whole internet) of Powerset (Natural Language Search, want to be the next Google)

http://www.youtube.com/watch?v=-qW0FttV3c4

http://www.youtube.com/watch?v=I1fjq8mYIaI

You can't see everything well, but it's sounds interesting....