a simple question: why unpack RPMS? Clearly Linux itself can be run
compressed (Live CDs do that now). Given the bottleneck of slow disk
and fast CPU it might be faster to load the compressed image, unpack
it, and execute it then it would to load it directly. Yet another
feature is that RPMS don't have to explode all over the filesystem
so upgrading is just a copy operation. Is anyone aware of an effort
to make an RPM filesystem? Could such a filesystem run in user space?
RPMS might not be the very best format for compressed packages but
they could make a convenient starting point. Fedora extras would
be so much sweeter if you only needed to mount the DVD containing
the RPMS and it all "just worked".