Microsoft has officially shipped Office 365, its new offering that’s less of a product and more of a customizable set of building blocks that lets businesses assemble productivity suites that include both desktop software and Web-hosted components, and then pay for them month by month rather than in one big chunk. InfoWorld’s Woody Leonhard compared it to Google Apps and gave Office the edge. But I’m struck by how different the visions presented by Microsoft and Google are. Microsoft has no particular desire to encourage companies to ditch desktop software, but knows that the cloud is important. Google would love it if companies abandoned desktop software, but acknowledges that even most companies that see a world beyond Office aren’t ready to quit it cold turkey. More thoughts on this in a project I’ll tell you about in a little bit….