It's interesting to me that the final "here's the new improved layout" screenshot is a 2000px wide screen shot. If you have to have such a large window to not fail cramped just to make some random metric happy, then I think you've failed.

The page itself also really seems to fight me moving around the map due to how it manages state and the URL stack. No doubt my browser isn't the same as a normal users, but it strikes me they're chasing the wrong goals here.