In a speech to fellow CEOs at Microsoft’s 14th annual CEO Summit, Microsoft’s Steve Ballmer said something that gives us an insight into what went wrong with Vista.
Taking about the operating system, he said:
“We tried too big a task and in the process wound up losing thousands of man hours of innovation.”
The problem with Microsoft (specifically in the pre Windows 7 days) is that the company had a huge track record of vaporware announcements. During the development of Longhorn (the project that led to Vista), there was an almost daily flow of announcements and new features from Microsoft. Longhorn was going to be everything to everybody.