Atlast, PwnageTool 4.1 has been released by the Dev Team and is ready to download. You could use it to jailbreak iOS 4.1 on iPhone 3G, 3GS and 4, iPod Touch 3G and 4G, Apple TV 2G and 3.2.2 firmware on iPad. PwnageTool is available only for Mac OS X users. But Sn0wbreeze is on its way. So windows users don’t worry, your jailbreak and unlock on iOS 4.1 is coming.
PwnageTool 4.1 doesn’t upgrade the baseband so that you could unlock your iPhone after the jailbreak with it. Follow this guide to unlock your iPhone after the jailbreak with PwnageTool 4.1.
Download PwnageTool 4.1 from here