In reply to ericoides:
No, it is not seen as a rival to google.
It's clearly going to be a useful tool, rather than a search engine -- as Wolfram says, "we're trying to compute things -- and I can imagine using it. But I can't see it replacing Google for all day use, and any "Google killer" talk seems way over the top. On the other hand, this is just the beginning. guardian.co.uk