Our friends at TUAW had an early peek at the desktop search tool and gave the utility a thorough run down and comparison with Apple’s Spotlight.
Once activated, a Google Desktop search box appears on your screen awaiting input. It starts searching as soon as you enter text, and displays the results in a friendly dropdown menu (though Spotlight’s results dropdown is a little better organized). You then have the option of seeing all results (if they all couldn’t fit in the drop down) or to search the web. If you choose to see all the results Google Desktop launches your default browser and presents your results in the very familiar Google results set webpage. Worry not, though, Google Desktop is not sending off your search results to Google HQ. The page, and results, are all produced locally (no need to fashion a hat out of tinfoil just yet, unless it is a good look for you). The results, as you can imagine, are sortable by relevance and date (the most recent files are shown first by default). Google Desktop also lets you look at the results that are just emails, web history, files, media, or ‘other.’
The question now is, "will you use it?" considering Spotlight and Quicksilver have grown quite popular and established. Thanks to everyone who mentioned this update