So I bought my 16gig today at the store. I had the original iPhone for about a year. When I did the purchase the Apple guy opened the box and activated the phone, this almost instantly de-activated my original iPhone. I was told that when I got home that the first time I were to put the iPhone 3G plugged into itunes, that itunes would ask me if I wanted to restore all previous data onto the new iPhone. This never happened and all my contacts are still currently on the original iPhone but nothing on the new one. Note: I did not have any address book on my PC.