Panthro - 4:12 pm on Sep 16, 2011 (gmt 0)
What many here haven't noticed is that every vertical search offering (in the dark gray top toolbar) now has the same, unified look and feel on its results page. Even more, the additional search options on the left are more clearly obvious, and I'll bet they are getting more use, too.
Good observation. The big orange "Search" in the top right definitely attracts your attention and if does not, the Results area with the page load time will connect you to it. From there, it becomes a little more obvious to the average user that "Search" is one entity, but that Images, Maps, News, Videos, Shopping, and More are other available tools for finding what you're looking for.
If it were me, I would probably try and make that connection even more obvious.