I dont want applications to be file-managers and hiding where my files really are. Files+directories is a very intuitive, powerful, and low-abstraction concept

I dont want applications to be file-managers and hiding where my files really are. Files+directories is a very intuitive, powerful, and low-abstraction concept --- directories and files correspond directly to inodes. Thus the file-system and users' view of files is the same. Tagging etc can easily be accomplished by using extended attributes (like in the BeOS Filesystem), but apparently no one wants to use extended attributes.