Search is part of the answer but it’s not the whole deal. Some users don’t like to search, it would be disastrous to just replace everything with search. I thi

Search is part of the answer but it’s not the whole deal. Some users don’t like to search, it would be disastrous to just replace everything with search. I think that tailor made libraries that leverage metadata are the other part of the answer. All modern music players and photo library apps already do this, they have a tailor made interface specifically for browsing music and photos. It’s not necessary to ever touch a music file or a photo in the file system. The obvious problem are files you want to use in several applications – e.g. that CSS or JavaScript file you are working on. It wouldn’t make sense to give every app a library, that would only confuse and lead to inconsistencies. I do think, though, that this is a problem most casual users will never encounter. Just add a document library to Office and most people would be set.