To be fair, he did qualify it as a design in progress.
That said, I think standing out from the pack is far from the worst thing they could do. I love the live tiles idea, but the rigid design language gives everything a very "samey" look that I think could impact the usability of Start screens with lots of applications. How many one color icons will it take before they all start to look alike?
My comment was more on the actual nav bar and the icons contained within.
Especially for a browser, I really don't think that the nav bar is where you want to be standing out. Look and feel the way the user expects and get out of the way. Where the browser should be differentiating itself, is displaying web content as fast and as well as possible.
In terms of the look of the tile, I'm not entirely sure I agree with you, however I certainly don't feel strongly enough about it to argue.
That said, I think standing out from the pack is far from the worst thing they could do. I love the live tiles idea, but the rigid design language gives everything a very "samey" look that I think could impact the usability of Start screens with lots of applications. How many one color icons will it take before they all start to look alike?