Toodledo, I also have GoogleCalendar and am using your iCal feed. Not your fault, but google lacks the ability to keep google calendar updated besides the 3+ hour heartbeat that is does or tries to do. Would you be interested in possibly also sharing toodledo data via XML format to be integrated on GoogleCalendar?
EDIT: I am after adding the feed to GoogleCalendar so then I can sync that with GooSync to my device instead of having the iCal issue not getting items. Also may the xml feeds could be updated as we update items in toodledo thus allowing for googlecalendar to stay updates as well