With the Sim Card Backup gadget you can replicate your contacts onto another SIM card.

You can also use this gadget to back-up a copy of your SIM card stored contacts in case you lose your phone.
The device has 16KB of storage which is enough for 500 telephone records. The memory is organized in 2 different SIM Cards data storage banks.

Think Geek sells the SIM Card Backup tool for only $14.99.

This is a neat, useful and low cost gadget holiday gift - a unique stocking stuffer.