I think google should be worried. Microsoft is going against googles whole design sense. They are thinking people want a change in whats become comfortable and sometimes comfortable can seem old. This is fresh its slightly like every other site users have visited.
Using the googlesque coloring is really a headfake towards the users. We’ve all been to sites that have used the google sear engine embedded results with their skin. This really looks like that.
I do like the related searches and search history. thats a nice feature to turn history on and off right from that section.
The whole layout means Microsoft is banking on drawing eyeballs to the left side of the page so they can sell ads in the All Results section.
The images results is really well done. Google’s page looks cluttered and haphazard in comparison. The thumbnail resizing is clean. this really is much nicer than googles.
Design will be the death of google.