That’s pretty ballsy. They’re syncing your address book and sharing it with others. This means advertisers and companies that you allow via Facebook connect have access to a lot of information that I haven’t necessarily approved because some friend of mine has synced my contact information via this feature. I’m generally really liberal with things like this, but this is pretty appalling to me.
I’m not sure when they started this. I was syncing Facebook with my iPhone because I liked seeing everyone’s updated photos. Was I syncing friends and family private information before?