Google Calendar restrictions

I tested FreeMiCal output with Google Calendar.
It works fine.

However, there is a quota limit on the number of calendar items one can add per day. I haven't found out the actual number, have to test a little.

Also, if you have more items in the export file, the server might run into a timeout. It leaves the import in an unfinished and undetermined state.

So far I am confident, that 500 items are OK.