Want to build an Xbox One game without registering as a developer? You may soon be able to, thanks to a leak of the Xbox One developer SDK by a hacking group called H4LT. It cites noble reasons for posting the software, namely to allow greater "creativity and research... towards homebrew applications" on the console. The leak, however, doesn't mean you can start cooking up official Xbox One apps, because you'd need to be accepted into Microsoft's ID@Xbox publishing program and clear other hurdles. Still, it'll let curious types poke around the SDK or possibly check for weaknesses, giving Microsoft another holiday headache.