Why is push email (as opposed to IMAP's pull) important? Besides giving you instant syncing and email updates, in addition to syncing your contacts and calendar, it saves you battery, instead of checking in intervals (i.e 5 or 15 minutes), it gets shoved a notification than email arrives.
So basically, you get all the benefits of syncing your address book, emails and contacts and any changes you make on the web or iPhone get replicated the second the changes are made.
So how do you set it up?
The trick is to make the iPhone think you are connecting to an exchange Server, so follow these steps:
- Go to Mail in your Settings area and tap "Add Account"
- Select "Microsoft Exchange"
- In Email field, enter your full gmail email address. Leave Domain field blank
- Enter your Google Email and Password
- Tap Next. It should pop up with a Server field. In the server field, enter "m.google.com". Press Next
- Select the Google Services you want to sync.
- Make sure you backup your data before proceeding, and that you have your contacts and calendars on your gmail account (from the web) set up.
- That's it!