About backing up and restoring data
You can back up and restore most of the data on your BlackBerry® smartphone, including messages, organizer data, settings, fonts, saved searches, and browser bookmarks. This feature isn't available for the BlackBerry® PlayBook™ tablet.
Research In Motion recommends that you regularly create and save a backup file on your computer, especially before you update any software. Maintaining a current backup file on your computer might allow you to recover smartphone data if your smartphone is lost, stolen, or corrupted by an unforeseen issue.
By default, your backup files are saved on your computer to /Users/<name>/Documents/BlackBerry Backups.