virtual file buffer spanning multiple physical files

[Ted Zlatanov]

On a LUG mailing list I saw a request for a way to edit multiple
physical files through one virtual file.  The solution recommended was
to use FUSE.  I was thinking that would actually (with some folding
magic) be extremely useful in Emacs.  There are many cases where I edit
multiple small files and have to switch back and forth to see their
contents.  Also, search-and-replace would be easier.

Is there any existing mode that does that kind of virtual join?

Ted