Despite occasional bursts of organizational frenzy, I've never bothered putting my emails and files into neatly structured folders - too much work and too damn inflexible. So of course I was an early and happy adopter of Gmail and Google Desktop Search, with at least one browser tab open for Google Desktop at all times. But with my recent upgrade to Vista, which comes with integrated Windows Desktop Search, I've actually found myself switching away from a Google product to a Microsoft product. Apart from the obvious in your face nature of the search box - a data point, if any are needed, that search has become a game of distribution - Windows Desktop Search integrates much better with Outlook, and my Inbox is mostly where I'm searching anyway.
A good job from Microsoft, and an encouraging sign that they'll be a credible foil for Google for a long, long time. Better for both companies, for consumers, for startups and for investors!