My wife had an iPhone before I did but now I've went back again. The problem is that since we share the same iTunes account our info is getting interchanged on our separate phones. Example: the contacts I put in my phone show up on her contacts list also, and vice versa. Also Siri can't tell us apart. I'll ask her my name and it says I'm "Monica" (my wife) and hers will say "Terry". Is there any way to fix this shy of changing and splitting our iTunes accounts? Thanks in advance.