Just bought 4S and love it and I have couple questions regarding Find my iPhone. 1. Do I need to install Find my iPhone apps from the store? I browsed Apps store and I found Find my iPhone apps. I don't see any Find my iPhone icon on the home screen, but if I login to icloud.com from PC, I can locate where my phone at. Do I still need to install this apps on 4S? 2. Supposed somebody stole my phone then the thief immediately delete my iCloud account from the phone. In this case, am I still able to locate my phone thru find my iPhone at iClouds - can I assume the phone is gone then? What is the best way to set up security on 4S?