Google Calendar Sync Warns Before Deleting Multiple Events from Outlook

I switched from Outlook to Google Calendar as my master calendar after Google provided OTA (over the air) syncing with the iPhone and Windows Mobile phones earlier this year. However, I still sync most of my Windows Mobile phones directly with Outlook in case Google Calendar ever goes down for a long time. So, I also use...

Google Calendar Sync

...to sync Google Calendar with Microsoft Outlook. I recently deleted a bunch of duplicate anniversary events (mostly birthdays) from Google Calendar that Outlook seems to often create after syncing with a Windows Mobile device. I was surprised but pleased to see that Google Calendar Sync warned me about the number of deletions before committing them to Outlook. Nice touch.