Jim Hedger reports on the Microsoft - Google battle: "Gates is worried about Google and has been for a while. For years, observers have watched Microsoft, imagining the frantic pacing behind closed office doors in the executive suites, waiting for something major to happen. There have been articles about the rearrangement of furniture around the board table and the flinging of furniture across Steve Ballmer's office but, for the most part, very little of substance has been written about Microsoft's plans to deal with Google. That's because, until recently, the moves Microsoft has made have appeared to be either cosmetic and internal, or clumsily executed and easily thwarted. This week, work that's been happening in the background is showing fruit."