sth like : # cat /etc/cron.daily/geoip /usr/sbin/geoipupdate.sh -f 1>/dev/null 2>&1
And what if you have hundreds of machines with GeoIP (NAT)? Maxmind will probably ban you.
IMHO this is too trivial to distribute an additional file for. Anyone running services that require periodic GeoIP database updates should be able to write such a script.
Also, a daily update will not do much most days.