To backup your unlock activation tickets, now you can use a option in updated version of RedSn0w.
Today iPhone Dev Team posted on his blog:
Redsn0w 0.9.10b8 adds the ability to backup arbitrary directories or files from your device into a zip file on your Mac or PC. The new button is Extras->Even More->Backup and it requires your device to be jailbroken with the afc2 service enabled (most jailbreaks include that). By default it will backup your activation records from /var/root/Library/Lockdown, which is useful for everyone taking advantage of today's SAM unlock using Loktar_Sun's trick (more on that in a later post!).
|Updated Redsn0w version|