How will contacts be updated when Google contacts 2-way sync is enabled?

So basically you're saying, relax it will work ok and it will bring everything into agreement on the first sync after the update :) Thank you I had to ask, since I still have nightmares when I first enabled google sync on a symbian phone a few years ago...

Yes, please, expose a setting to let the user choose the conflict policy he would like to apply. My choice would have been the opposite (prefer server changes) because I consider that the probability of having corrupted data on my phone is higher than having corrupted data on the server.

I think this logic should be simplified.

Currently, when you add a contact detail on the phone, and delete that detail on the server, is is magically synchronised back as it "belogs to the phone" as soon as another synchronisation has been executed.

I propose the following approach:

• When a new contact is created on the phone, you select where this contact should belong to: e.g. one of your Google accounts, the local phone or any other account source like card dav.
• This is also important if you have multiple Google accounts (e.g. I have a private and company Google account, and I want to separate private contacts from business contacts).
• The selected source is then the "master". Apart from local contacts, the remote source is always the master. This means than you can add contact details locally on the phone that are synchronised to the server, edited or deleted there and vice versa without strange behaviour due to "detail belongs to phone"