[mbreese]

Intellectually though, I could see the WinFS failure as being more disappointing. If it had worked, local computing would have been completely different. Much like BeFS, WinFS (as marketed) would have introduced many new ways to interact with your computer and data.

Having a bigger presence in mobile and social would have been more lucrative, but from a CS geek point of view, the failure of WinFS might have been more stinging.