A credible follow-on to Steve Ballmer’s bubbly “we’re all in” speech at the University of Washington in March has finally landed in the form of a very comprehensive white paper from Microsoft’s Corporate Strategy Group.

In typical Microsoft fashion, there’s no reference to the established competition; the implicit assumption being that the Cloud is all Microsoft’s to take — a replay, perhaps, of the PC and Server revolution 25 years ago. Given the inexorable decimation of the Midrange system and Unix server market by Windows over the last 15 years, not to mention the stranglehold on the corporate desktop, Cloud’s current market leaders would do well to revisit the lessons of the past in the hope that they can be avoided in future.

For a comprehensive treatment, see Cloud Computing Journal’s assessment of Microsoft’s White Paper. Not only is this an analysis of Microsoft’s take on the true value proposition of Cloud Computing but it also reveals more than ever before the implications for Microsoft’s existing businesses and their presumed future strategy.