Pod2g from Chronix Dev Team has found a new bootrom exploit that could bring iOS 4.1 jailbreak tool for all iPhones and iPod Touches. Unlike a userland jailbreak (Spirit/jailbreakme for example), Apple cannot fix a jailbreak based on a bootrom exploit with a new firmware update. A bootRom based exploit can only be patched with a new hardware revision.
This is what MuscleNerd and Pod2g has tweeted about the new exploit:
Apple has pushed the iOS 4.1 firmware update for iPhone 4, 3GS, 3G and iPod Touch 4G 3G, 2G. If you depend on jailbreak and/or unlock, you’re strongly recommended to avoid iOS 4.1 until new jailbreak and unlock tools are released.
Stay tuned at iPhoneHeat.com. We’ll keep you posted on future developments.