Originally Posted by T-Roy
I am curious what it does? why would you need a sim card reader?
It is supposed to be able to sync the SIM card contacts with Outlook.
It also was (or at least the ad I read initially said it was) supposed to back up the other information on your SIM card, which could then be copied to a new card. This could be helpful if your card gets damaged or you lose your phone (easier to get back up and running with a replacement without having to wait on the carrier).
I have since been informed that the reader I purchased apparently will not back up the card info, just contacts. Other readers will apparently do both.