LEGALLY UNLOCK(JAILBREAK) YOUR IPHONE,IPOD,IPAD

Now you can legally Jailbreak your iOS. A new DMCA exemption was approved by the Library of Congress, Specifically allowing jailbreaking.

Now  Jailbreaking your iPhone, iPad, iPod Touch is simpler than ever before. You can do it from your device browser itself.
Before trying to Jailbreak your iOS, I strongly recommend you to backup your device.
This process is completely reversible by plugging in your device and hitting Restore in iTunes.
* Your device's warranty void if unlocked.
Go to jailbreakme.com from your iOS.
alsoread: Jailbreak iOS 4.0.1