Q: My wife and I are both AT&T wireless customers. We have separate AT&T wireless accounts. I currently use an iPhone 4s, and she uses a BlackBerry Torch 9800. I recently purchased an iPhone 5s, discounted by the 2-year AT&T contract. When the iPhone 5s arrives, I plan to setup/activate the iPhone 5s for me to use, then factory reset the iPhone 4s, for my wife to use. Would the iPhone 4s require a new SIM card for my wife to use it?…
