The iPhone DevTeam have probably found a new method to jailbreak Apple devices with the A4 chip. This includes such devices as iPhone, iPad, iPod and Apple TV. This is great news!
MuscleNerd tweeted.
Think we’ve figured out a way to extend PwnageTool+limera1n+@comex hacks to untethered JBs for all future A4 firmwares 
DevTeam released update to their PwnageTool jailbreak utility. New version 4.01 supports iOS 4 jailbreak for iPhone 3GS (old bootrom), iPhone 3G and iPod Touch 2G (non-MC).
You can download the latest version here.
We recommend to read DevTeam instructions before you start.
After days of silence, the DevTeam has finally updated the official blog, writing a little phrase:
Update: We’re currently working on PwnageTool for 3.1, and will be sure to let you know when it’s available!
Good news! PwnageTool is a utility to jailbreak iPhone with a custom created firmware. So what we know for now is that DevTeam is creating a new version of PwnageTool for firmware 3.1. No dates or deadlines as usual. We will keep you updated.
UPDATE: PwnageTool 3.1 is avaliable
This information is for those who are worried about not being able to run the iPhone Jailbreak with the new operating system Snow Leopard. Dev Team said that RedSn0w and PwnageTool works perfectly.
Looks like Apple didn’t create any anti-jailbreak system. Good news.
News from DevTeam:
iPhone 3.0 OS is jailbreakable on all devices. It’s just those using 3G yellowsn0w that have to show some restraint and wait for PwnageTool to create a custom IPSW that avoids the baseband update. If you are using yellowsn0w, do not update or restore to iPhone 3.0 firmware. You will lose yellowsn0w and find yourself unable to revert the baseband to get it back.