iPhone 5 prototype jailbreak demoed

Grant Paul, a San Francisco-based software hacker and open-source enthusiast, claims to have jailbroken Apple’s latest iPhone not 24 hours after its release, according to pictures published on his Twitter feed.
“I started working on it the day before the iPhone 5 was released, and I had my iPhone 4S jailbroken on iOS 6 in a few hours,” Paul, also known as chpwn, told me in an e-mail. “Then, once I got an iPhone 5, it was even easier; It took just about half an hour from first tuning it on to a jailbroken iPhone 5.”
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“I want to stress that the biggest impact of this is to allow other jailbreak creators to start working on their own jailbreaks,” he said. “In the past, this same set of methods to get into the device has helped others gain enough access to create and test a jailbreak that does end up being released to the public.”

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No details yet - he claims it's too unstable for daily use, but still interesting and quite quickly done.