I have searched through the forums and haven't come across a straight answer. I want to get an iPhone, I'm not currently eligible for a hardware upgrade but my mom is. We're on Rogers. If she upgraded her phone to the iPhone, would I be able to take out her SIM card and put mine in (both Rogers SIM cards) and have the iPhone activate my SIM card? I'm not worried about the data plans or anything, just that the phone would be fully functional. Thanks.