Google has added support for syncing your Google Contats to iOS using CardDAV.
For many years, we've supported two open protocols for accessing Gmail and Calendar from mobile apps and devices: IMAP for email and CalDAV for calendar. These protocols, combined with the options to access Gmail, Calendar, and Contacts with your desktop or mobile browser and via native apps on iOS and Android, help ensure you have a great experience regardless of the device you use.
Starting today, we're adding CardDAV - an open protocol for contacts - to that list. CardDAV enables 3rd party clients, like the iOS contacts app, to sync your Google contacts. By supporting IMAP, CalDAV, and CardDAV together, we're making it possible for 3rd parties to build a seamless Google Account sync experience.
We've posted instructions on how to sync your Google Contacts to iOS using CardDav.
I did a test in Google Contacts:
I edited 1 contact and I added a lot of numbers, emails, websites, addresses and dates when i sync in iphone and ipad:
result?
Exchange Vs. CardDAV
tel numbers: max 6 vs no limit? (I entered12)
email: max 3 vs no limit? (I entered 8)
websites max 1 vs no limit? (I entered 4)
addresses max 3 vs. no limit? (6)
dates max 2? vs no limit (6)
THANKS GOOGLE!