I'm wondering if I should allow Facebook to interact with my contacts on my iPhone/iPad. What have you guys done? Have you trust Facebook with your contacts?
I believe the integration, as far as your Contacts are concerned, its more of a one-way kind of thing. It pulls your Facebook friends and sticks them into your Contacts list. If they freely display their phone number on their FB page, then their number will be added as well. It might also be used for direct messaging friends from within your Contacts or when posting from NC. I don't think FB is seeing your other friends' phone numbers or anything like that. But I could be wrong. Also, I noticed it also adds your FB friends' birthdays to your calendar.
In hindsight, this is a feature the Android version of the FB app has had for awhile now.
iv tried it,
the photos it pulls from facbook to update contacts isn't that good. in fact they look like ****,
iv got it on at the moment, but have turned off contacts and calendar sharing.
i just use it for quick posting of photos etc