http://fishtrain.com/2007/11/13/the-downfall-of-the-microsoft-empire/

Microsoft is seeing a monumental, momentum shift. Never before has Microsoft seemed so vulnerable. It is being attacked on all fronts by huge, game-changers. Is this a repeat of computing history? Microsoft changed the scene when they licensed MS-DOS and later Windows to IBM -- which was the dominant force, at the time. In those days, everything had to be IBM-compatible. Microsoft's operating system powered IBM computers -- and, as we know, software can be highly profitable. Thus, Microsoft quickly eclipsed IBM and went on to rule the world with an iron fist. Is this deja vu'?