I don't know how much control you have over the search function (what with it being Google tech and all), but if I may make a couple humble suggestions:
Right now the search results exist in the same page you were on when you did the search, so instead of getting a tab titled "Search results - ...", it might be the name of a thread.
Also clicking on a search result takes you to a new tab, which is fine, but you can't hit back to get back to search results, which is my normal reflex. This combined with the first thing makes it a bit confusing to navigate tabs, as you'll be trying to find "search results" in your tabs. If it opened in the same tab, you could always Ctrl+click or MMB to open it in a new tab.
Anyway, maybe that's just the way I like to navigate search results, but thought I'd offer up my opinion. But thanks for the new feature, with my limited use it seems a lot faster and nicer than the previous method.
Edit: Although some advanced search tools wouldn't go amiss.