The bootrom exploit used by Geohot in his Limera1n tool is now ported to GreenPois0n and soon the same exploit will be used in the upcoming versions of Sn0wbreeze and PwnageTool as well. Sn0wbreeze 2.1 and PwnageTool 4.1 will create custom IPSW of iOS 4.1 which will jailbreak all iOS devices supported by Limera1n and GreenPois0n.
Update via iH8sn0w:
Update via MuscleNerd:
According to MuscleNerd, PwnageTool 4.1 will be coming out this Sunday and it'll jailbreak the new Apple TV as well, which consequently will allow you to run certain apps on it. Sn0wbreeze 2.1, on the other hand will be released a few days after the upcoming Sunday.
With both of these tools, you will be able to jailbreak iOS 4.1 on iPhone 4, 3GS and iPod Touch 4G, 3G without upgrading the baseband of these devices to 05.14.02 / 2.10.04. You will be able to use Ultrasn0w to unlock your device after jailbreaking your iPhone with these tools.
Update1: Download PwnageTool 4.1 to Jailbreak iPhone 4, iPod Touch 4G, Apple TV 2 & iPad
Update2: Jailbreak iPhone, iPod Touch, Apple TV & iPad with PwnageTool 4.1 [How-To Guide]
Update3: Download Sn0wbreeze 2.1 to Jailbreak iOS 4.1 & iOS 3.2.2
Update4: Guide to Jailbreak iOS 4.1 & iOS 3.2.2 on Windows with Sn0wbreeze 2.1
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