With the latest iOS 6 update, all your iPhone using buddies around the world are going to start syncing their Contacts to their Facebook account, hoping to automate what can be a fairly tedious process. Unfortunately, if you haven’t set your Facebook account settings to get your real email address into the sync information, your friends are going to just get a useless @facebook.com email address attached to your contact on their iPhone, and no one wants that.
Fortunately, there’s a way to fix this problem, and make sure Facebook’s secret switch to their own branded email addresses in your Facebook contact information doesn’t go any farther than it already has.