not to get off topic but how is technology far more ahead to use SIM cards to store contacts? Easily switch phones without having to re-enter contacts, what other technology do we have that does that? Saving it to the memory card does not always work because not all phone use the same format of contacts or even the memory card. Sending contacts over Bluetooth would take forever. SIM contacts on a phone is something that is universally available and I dont think there is any technology that came do the same.