Q: I gave my sister my iPhone 3GS after i purchased an iPhone 4S. Recently I noticed that her calendar entries appear on my iPhone as well as her contacts. How can this happen? She must have her own iTunes account as I have never told her my details. - Marita A: The most likely cause of this is that you did not fully wipe and reset your iPhone 3GS before giving it to your sister, and therefore some of the previous calendar and contact synchronization…
