Podfuk wants to replace userfs; the reasons for
its existence are about the same as for userfs
(filesystems in userland are easier to debug, and
you can have completely new filesystems (tar)
that would bloat the kernel too much). Podfuk has
advantages over userfs: it does not require
kernel patch (coda is present in 2.2.X kernels)
and it avoids C++. Currently, all VFSs from
midnight are supported; that includes tar, gzip,
ftp, bzip2, fish, and more.
