Take that, Google. To alleviate any antitrust concerns, Microsoft has to make separate deals with each OEM if it wants its search integrated into an OEM's PCs. And on Monday it landed a biggie, particularly with HP's ranking as the world's largest PC manufacturer.

Today Google is launching a Macâ„¢ version of its Google Desktopâ„¢ application to enable Mac users to find and access information on their computers and across the web as quickly and easily as possible.