I was alerted to this by Rod J on kubuntuforums.net (I had a non-NZ server for security updates, so as they trickled through I hadn't noticed the lack of application and system updates).
I've just pointed my main saucy install at the "main server" and received 194 updates, 185 MB worth.
Looking at the several mirrors in NZ, only ucmirror.canterbury.ac.nz appears to be up to date.
Who hosts nz.archive.ubuntu.com? Who should I contact about this? I've taken this stuff for granted for years.
Regards, John Little