Apple has just told CNET that they have fixed the bug in mobile safari which allowed the jailbreakme.comjailbreak by the iPhone Dev Team. The bug that allowed the jailbreak was a security vulnerability in the way it loads PDF files from the Web. An Apple spokesperson said that “We’re aware of this reported issue, we have already developed a fix and it will be available to customers in an upcoming software update,” but there was no word on when it was going to be released.
Whenever this update gets pushed out to the world, the jailbreakme.com jailbreak will not work and the iPhone Dev Team will have to work out another way to make Steve Jobs very angry.
The official iPhone 4 jailbreak is now finally available by Comex. Jailbreak 2.0 is the most easiest jailbreak method to date, all you need to do is visit the website Jailbreakme.com right on your iPhone using Safari, and just slide to to jailbreak! It's that easy. You should always back up and sync with iTunes before doing this. Jailbreaking is completely legal in the US. This website will also jailbreak your iPad, iPhone 3GS or iPhone 3G.
Update: This could brick your device. But there are reports of this working flawlessly.
However, this Jailbreak does kill Facetime and MMS. So DO NOT Jailbreak your iDevice this way if these features are important to you.