Fujitsu Siemens later released a GPRS expansion module that provides mobile phone functionality.
Main difference between N100 and N110 is that N100 did not have any built-in user accessible memory, but came with 1 GB Mini SD card.
N110 on the other hand had 2 GB built-in memory and a free Mini SD expansion slot.
To prevent data loss, users should back-up RAM before restarting Linux.
It is possible to boot from either CF or SD cards; as mentioned above, a backup of all data is highly recommended.