I have a problem when creating a recurring all day event....
The calendar renders the event just fine, but there doesn't appear to be a way to do anything with the event once it's on the calendar. For instance, if I subscribe to the EventDoubleClick event via javascript the event argument does not hold the recurrentMasterId(). This makes it somewhat impossible for me to remove the series or create a recurrent exception.
Single all day events work as expected.