Under the 'settings' -> 'mail contacts calendars' -> gmail
there is no option to sync the contacts
what's the workaround?
This will bring your Google contacts in, and it is smart enough to show you a unified view of your Google contacts with your Apple ones. I.E., if you have someone in both sets, they show up as one contact, and you can see which pieces of data came from each. It works very well for me.