I have a Google Apps account through work. I've noticed that when I add a calendar event there is a significant lag time between when I add the event and when it appears on my iPhone. Additionally, edited events don't seem to be reflected on my iPhone. Is there a way that I can ensure that events are added and updated in a timely fashion?
Google-apps – Sync Google Apps Calendar to the iPhone
google-appsgoogle-calendariphone
Best Answer
From http://www.google.com/support/mobile/bin/answer.py?hl=en&answer=151674:
To sync with your device, follow these steps:
After you've completed setup, open the Calendar app on your device and syncing will automatically begin.
By default only your primary calendar will be synced to your device. You can sync additional calendars by visiting the following page from any web browser:
Select the calendars you'd like to sync, and click Save. The selected calendars will display on your device at the time of the next sync.