Looks like this is it - i have to say i really dont like it. I cant use the back button, its really slow on my laptop, but ok on my desktop machine.
As soon as i type on the google homepage search it flicks to the search results which is going to take some getting used to, and the suggestions are still in the middle of the screen (where they would normally appear under the homepage search box) over the 3rd/4th/5th result depending on how many sponsored links are there.
I'm sure this will get ironed out pretty fast but it feels very beta.