I've been searching for a new method to backup my MobilePro with netbsd.
In searching, I stumbled across an interesting concept I hadn't thought
of.  Basically you need an ssh client on your source system, and an ssh
server on the target system, and obviously a networked environment
between the two.  Then you can issue the following command:

cd /
tar -cvzf - * | ssh <targetsystem> -l <userid> dd of=3Dbackupfile.tgz

One of those things that's completely logical, but I hadn't thought of
before.