Jailbreak iOS 4.3.1 on iPhone 4 is Now Available
Okay, so this was fast. iOS 4.3.1 was just released and the tethered tool to jailbreak iOS 4.3.1 on iPhone 4 is already available. iPhone 4 on iOS 4.3.1 can be jailbreak using PwnageTool 4.2, Universal Ramdisk Fixer and tetheredboot utility.
Remember, you need to have a factory unlocked iPhone 4 to try this because there is still no unlock available for iPhone 4 on iOS 4.3.1 for people on carrier-locked devices.
This jailbreak iOS 4.3.1 is only available for iPhone 4 at the moment. iPad and iPod Touch support will be coming soon.