F0recast

f0recast is an application created by iH8sn0w. He created a simple application to tap into MobileDevice Library inside of: C:\Program Files\Common Files\Apple\Mobile Device Support\bin\iTunesMobileDevice.dll

It grabs these functions when an iDevice is connected:
 * Serial #
 * Baseband
 * Bootloader Version
 * Model
 * ProductType
 * SHSH on Cydia Server

How does it determine if its unlockable?
When f0recast grabs the baseband version, it checks the version against a built-in database to determine whether it is unlockable or not.

How does it determine if it's restricted to a tethered jailbreak?
f0recast checks the built-in database of firmwares which are tethered and untethered.

License
Freeware.

Resources
Download f0recast