I run into the follwoing problem.
Using an internet connected at my lab makes me happy installing each
package I need from source.
At home I have only a very slow moem connection, but I need also the
same packages (not precompiled,
the sources) there.
One idea was to "fetch" every source tarball of every installed
port-package as reported in /var/db/pkg,
burn /usr/ports/distfiles in conjunction with a up to date
/usr/Ports-tree on one or two DVDs and
the copy this at home on the disk (capacity is not an issue).
Unforunately "portupdate" does not have a simple functionality to ...