Download Updated Redsn0w 0.9.6 RC16 and Sn0wbreeze 188.8.131.52 to Fix Bugs and Side Switch Vibration Issue on iPhone 4/ iPhone 3GS
NOTE: No jailbreak for iPad 2 yet.
Download Redsn0w 0.9.6 RC16 For Windows
Download Redsn0w 0.9.6 RC16 For Mac
Download Pwnage Tool 184.108.40.206 For Mac
So when you download it, simply Jailbreak iPhone 4, try the iPhone 3G with it. And it strengthens the bugs. Click here to view a guide to how to jailbreaking.