This article would make sense if Microsoft Office was Microsoft's ONLY product. But isn't it obvious why they haven't developed serviceable clones of Office for other platforms? They are selling the platform. Office, more than any other factor, has driven the market leadership of Windows for two and a half decades; and Windows in turn has driven the market leadership of Office. That's the Microsoft catch-22: they can't change anything about this relationship, because changing even one detail means losing market share.