The developer behind one of the coolest jailbreak utilities around has released the source code. This allows anyone to examine how the exploit works, and possibly to improve upon it.
JailbreakMe 3.0 provides the easiest way to jailbreak an iPhone, iPod touch, or iPad running iOS 4.3.3 or earlier is to use JailbreakMe 3.0. Basically you point your mobile web browser at a web site, click a button, and your device will download a corrupted PDF file, start running some code, and in a few seconds the Cydia store will be installed allowing you to download and install apps that aren’t available from the official App Store.
That includes apps that alter the behavior of your device at the system level, changing the way you receive notifications or changing the logo that appears when you first boot your device, for instance.
More than a million iOS devices were jailbroken using the exploit in the first few days. A few days later Apple released a software update closing the security hole, so you can’t use JailbreakMe to open up a device running iOS 4.3.4 or higher. But the source code may hold some value for posterity… or for anyone that hasn’t yet upgraded their device.
In the meantime, there are other ways to jailbreak a device running iOS 4.3.4.