I'm a Google lover and I think that all my (few) readers now know this so... can I miss a post about the launch of the new Google Desktop Searching Tool? No... 
I've not well tested the tool at the moment (just a little try) but the first thing I've see is the missing support for Firefox, but I'm sure it's only a temporary lack. 
Google is for me (but not only for me I think) a synonymous of "search" so, after the great Google Deskbar (one of my useful tool of every day work) this is the next big step for a desktop search domination... and when Longhorn and WinFS will come??