I like the concept of it but the layout of the results page is...well... not so good. I, like others, was impressed by the results I got for my search, but it was hard to tell what I was looking at for a minute. I didn't instantly know that what I was looking at was in a certain category and so on and so forth. It looked more like a bunch of random text about X topic thrown up on the page in an unstructured manner with hyperlinks to who knows where. I think with a little bit of work on structuring the results that it will be a pretty decent system. Not that I see it rocking the foundation of Google anytime soon, but that doesn't mean Microsoft ;-) they are only 6% after all.