I've updated my GoogleCalendar.cfc. It now correctly (I think) handles time zone offsets and recurrences. I also added a simple way to make it refresh its own cache.
I think next I'll make a few convenience functions, like getTodaysEvents, getThisMonthsEvents, getThisWeeksEvents. Suggestions are welcome. (And if you use it on your site, let me know!)
The download is attached to this entry. I'll add a project page later on.
Oh - and I actually included instructions this time, and, thanks to certain events in the past, a license file as well.