The SIM card might be a bum steer. I haven't used the SIM card to actually store contact information in my last 5 or 6 phones, because the normal SIM only supports single name and number pairs. To store full contact information, including full names, addresses, email addresses, multiple numbers per contact, etc. all my recent phones have used in phone memory, from the Nokia 8210 through Nokia 8310, Nokia 6230, Nokia N95 and iPhone, ending with iPhone 5.
I believe there was a change to the SIM card specification to allow the storage of more detailed contact information, but I am not aware of any phones that use it.