Moving your iPhone Contacts and Calendars from MobileMe to Gmail

As you can imagine, there is no direct way to connect your MobileMe account to your Gmail account and just copy everything over because they are two completely separate companies.  In order to do this move as seamlessly as possible, we're going to be using your iPhone as an intermediary bridge between the two. 

Before we go any further, this process will almost certainly wipe your contacts and calendars from your iPhone so you really should be backing them up at this particular point.  Here is how:

How to backup your iPhone contacts using a PC

How to backup your iPhone contacts using a Mac

Now that you have done your backup, you are ready to proceed setting up Google Sync on your iPhone.

Believe it or not, that link is all there is to it.  This process is just that easy.  Google really does do a great job of explaining the process and give the screen captures to show just how it works.

Now, restore your contacts and calendars to your iPhone, and let Google Sync do the heavy lifting for you.

Oh, almost forgot.  If you happen to have multiple calendars, Google has you covered too:

How to choose which multiple calendars to sync

By this point, I'm sure you're asking yourself, "What's the catch?".  Well, there are some limitations:

• Limited Contact Information
  The iPhone can synchronize up to 3 email address. Phone number synchronization is limited to 2 Home numbers, 1 Home Fax, 1 Mobile, 1 Pager, 3 Work (one will be labeled 'Company Main') and one Work Fax number. 
• Imported Recurring Events May Not Sync
  If you've imported calendar entries from another calendar system into Google Calendar, you may find that only the first occurrence of the event is synchronized, or - in some cases - the event may not be synchronized at all. Events which occur multiple times per month (for example "the first and last Monday of each month") cannot be accurately represented in the ActiveSync protocol. Recurring events created within Google Calendar will sync correctly.
• Attendee Status for Calendar Events
  The iPhone doesn't reflect the attendee status (Yes/No/Maybe) of guests in the user interface of the Calendar application. Google Sync provides a hint in the form of a checkmark in front of a guest's first name.