I don't know about other services, but Verizon offers on-line dynamic backup of contacts from cell phones. I'm using their "Backup Assistant" app. Supposedly if I get a new (verizon) cell it will enable me to transfer all my contacts. At a minimum I can go on-line and print all my contacts.

Why/how would you back up the sim card? I don't understand cell technology, so just wondering what the point would be.