My husband has an iphone and I have an iphone. We both have separate accounts on itunes. How does this work because now if I log on to itunes on the computer, then my id is stored. So when I use the iphone, my email address pops up when I go to itunes or the app store. Everything is ok. Then my husband goes to itunes/app store on his phone and he can't buy anything because it is my log in. It doesn't appear to allow him to change it anywhere. Does anyone know if you can log on or off via the iphone. I would hate to have to go to the computer every time. You would think Apple would realize many people in the same house have iphones and itunes accounts.