Do you have to stay in developer mode to use the calsync? If so, what good is this if I have to pick between the calsync and every other tool available to the native app? If not, how do you keep the calendars synced but escape developer mode without deleting everything? Do you have to return to developer mode to resync the calendars? The calendar I built didn't actually populate any of my meetings or calendar events. I did it several times, but the book, still nothing. I am not impressed.