totally rsync based package updating system?

[Dan Jacobson <jidanni@jidanni.org>]

Say, would the least bandwidth package updating system be one where
the user just does
rsync mirror:Packages /var/...
then for $(each package that needs updating)
rsync mirror:uncompressed_package /var/...
Hmmm, but then it's not usually just documents that have changed...
OK, then how does ubuntu do it? Well then more time is spent
compiling. Anyway, just wondering if one put the highest priority on
bandwidth...
Hmmm, I suppose no way you look at it, you're not going to be able to
track sid with just a modem without extra $.