In case anyone was wondering how to get your Google Calendar on your iPhone (not as merely a subscription, but as an active, editable CalDAV calendar), follow the steps below: Note: be sure that you have a Gmail account and a calendar already setup. If you don't this probably won't work. I'm also not sure if you need to manipulate any settings in Gmail (I setup my calendar so long ago I don't recall what if anything that I've changed). Nevertheless, follow the instructions and hopefully it will work for you. On your iPhone, go to: Settings> Mail, Contacts, Calendars> Add Account...> Other> Add CalDAV Account> Now type the following: Server: https://email@example.com/user/ Note: if you are trying to sync a secondary calendar, use this URL Server: https://www.google.com/calendar/dav/[string of numbers and letters]@group.calendar.google.com/user/ username: YOUREMAIL@gmail.com password: ******** your Gmail password description: Whatever you want to call your calendar - I just titled it Server Calendar There you go! This is a great solution for those who don't have MobileMe - and even those who do. I prefer to work with Sunbird, which MobileMe doesn't support. This way, though, I can sync the calendar to Sunbird and sync the CalDAV version to the iPhone, and all is good. Enjoy!