The SIM Card Backup Bug. Too cute. $7.34.
* Backup and restore the directories in the SIM cards easily and quickly. * Volume: 8KB (can store 250 telephone directory records). * Single machine operation: need not connect to PC or PDA to operate. * Lose no information when mobile phone lost. * Copy information of the device to any SIM card if user is using different SIM cards in different cities or different countries.