This is a set of files I use to synchronize the ipod with google calendar.

Files: 
iPod.ico - Nice icon when the ipdod is mounted
AUTORUN.INF - Autorun file, to have the icon and add the "update ICAL" option  when rights clicking 
over the iPod driver to launch the updateIpdoScript.sh
updateIpod.sh - script that retrieves the calendars from google
macUpdateIpod.sh - script that retrieves the calendars from google (AMC Os version)

The script as it is expects ipdod with drive letter I: and cygwin installed in c:\cygwin\, this can 
be changed in the AUTORUN.INF file and updateIpod.sh
Edit the file updateIpod.sh to add your URL calendars (ICAL)

This is distributed AS IS, no guarantees