Shortly after the expiration of iOS 4.3.1 yesterday, the leading tethered jailbreak is now available for the iOS update, although commonplace limitations limit the jailbreak to all devices save for the iPad 2. Other caveats of note include a numerous baseband on 4.3.1 with no unlock available. The jailbreak requires a combination of PwnageTool 4.2, Universal Ramdisk Fixer besides the tetheredboot balm to function correctly.