
Untethered Jailbreak on iOS 4.2.1 for iPhone 4 / 3GS (New Bootrom) to be Released This Christmas
The jailbreak for iPhone 4, iPod Touch 4 and iPhone 3GS (new bootroom) on iOS 4.2.1 is tethered for the time being through the redsn0w jailbreak developed by the iPhone Dev Team. However these new devices are expecting a tethered jailbreak for the new firmware that should be available in time for Christmas.