> For people that don't know, ctm is (I think) a FreeBSD thing that
> takes the diff's of the source tree, packages them up, zips them, and
> can encode and mail them out to subscribers.  One can then have a mail

This sounds like a good idea to me.  I don't use sup or anoncvs at the mo,
and just update infrequently, by transferring tarballs on a ZIP disk.  But
I might just use something like this.

Cheers,

David.