I think it
could be a great move for those of us whose main content for a particular keyword/niche is not just a static web page.
Instead of having to click on something to get non web results it will be right in front of Joe Surfer.
BUT
(it's a big but)
Prioritizing results for
their idea of what is the most relevant will be a nightmare.
Will your 100 pics of Britney be more relevant than my 20 second video?
Will I be on page two of universal results now instead of before being page one under the video link?
So it could go either way but hopefully we will get some more image/video/blog traffic out of it.