A Thought on SharePoint as File Server 2.0

A while ago Ed Brill had an article in his blog which mentioned SharePoint being described as File Server 2.0 (a phrase coined by Sean Burgess). This got me thinking - originally Vista was going to have a new data storage and management system called WinFS. I had even read somewhere that WinFS was going to be very much like Lotus Notes in the way it handles data. Then in June 2006 Microsoft shelved those WinFS plans. Did they pull the plug because SharePoint was going to fill that need? Basically could they make more money packaging the functionality as SharePoint that they would building WinFS into Windows? Of course there is no way to know one way or the other, but the phrase File Server 2.0 certainly did get me thinking.