It's a good start, but needs a lot more work to integrate with more pages (eg. Gmail, Calendar, Preferences, Video, About Google, etc.). Also, I found that if you go to /preferences?sa=F (the link from safesearch), because of the way the table is made (and safe search highlighted) it hides the SafeSearch option. Also it would be better if it made more of those cool Google logos (eg. Images, Groups, Video, etc.) for the others... Overall, good for your normal search.
About Google Web Search - dark gray redesign (vC) on Jul 29 2007