How To Check If iPhone/iPod Touch Is Tethered Or Unlockable
So you, like many others who are aspiring to jailbreak and unlock their iPhones or iPod Touches, are completely clueless as to whether your device can be tethered or unlocked? Well, you don’t have to do all the research yourself. Now you get the answers in a jiffy, thanks to f0recast, a tool released by the iH8sn0w team. Yes, they are the same guys who have helped us jailbreak iPhone 2G/3G/3GS 3.1.3 with Sn0wbreeze.
Aptly named, f0recast lets you know if your iPhone or iPod Touch can be unlocked or tethered. Apart from this info, it also gives you details such as the serial number of your device, the baseband version, the bootloader version, model number (MC). All you have to do is connect your iPhone or iPod Touch to your PC via iTunes and then run f0recast.
F0recast works with all iPhones and iPod Touches: iPhone 2G/3G/3GS, iPod Touch 1G/2G/3G. This Windows program requires .NET framework 2.0.

Download F0recast

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