My wife and I have new iPhone 4s. We are syncing using the same instance of iTunes on PC. I used the Verizon VZ Contact Transfer app on my phone to load all of my contacts on it last Monday. Everything worked great. My wife did the same with her phone and her contacts. Again, no problems. I am using Hotmail and set it up today to access that address book on the phone, too. My wife did the same with her Hotmail account today. Tonight, we both synced our phones and now my phone's "All from My PC" contacts group contains both my contacts and my wife's. And my wife's phone's "All from My PC" contacts group contains both her contacts and mine. How can we undo this and how can we keep this from happening again? Thank, in advance, for the advice!