George Hotz, the famous hacker known for the first iPhone jailbreak has done it yet again. He claims he has jailbroken iPhone OS 3.1.3 but untethered! That means he did not have to use the iPhone cable.
Jailbreaking is a process that allows iPhone and iPod Touch users to run any code on their devices, as opposed to only that code authorized by Apple. Once jailbroken, iPhone users are able to download many applications previously unavailable through the App Store via unofficial installers such as Cydia; Icy; and Installous, as well as illegal pirated apps. A jailbroken iPhone or iPod Touch is still able to use and update apps downloaded and purchased from Apple’s official App Store.
Jailbreaking is distinct from SIM unlocking, which, once completed, means that the mobile phone will accept any SIM without restriction on, for example, the country or network operator of origin. Jailbreaking, according to Apple, voids Apple’s warranty on the device, although this is quickly remedied by restoring the device in iTunes.
Hotz claims that the jailbreak should work on the iPad too. Maybe that is why he has not released the jailbreak for 3.1.3 as of yet. Lets keep our fingers crossed that the update will work on the iPad as well. Keep an eye on Blackra1n.com for the jailbreak.