Microsoft Applauds Hacker For Windows RT Jailbreak Attempt
Over the weekend, it was reported that a hacker had claimed to discover a way to jailbreak a Windows RT device so that it would run non-Windows Store apps on a Windows RT device via a circumvention method. The method was discovered by clokr on Sunday, and and Microsoft immediately responded it was investigating the claims, which were verified.
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Story added 9. January 2013, content source with full text you can find at link above.