It's not actually "open source hardware" in the sense that you can build your own. They were a bit paranoid that it would get ripped off to the detriment of the project if they did that. But it is very community driven and based on a lot of open source software.
the just didn't want to show that stuff to early. The will realeas the plans and in the meantime you can ask MWeston (he is the hardware designer of the team) he will help you if you have questions.
Would you have taken the risk there is no compony behind this (like with Neo Freerunner). And open is not all about finding bugs is alsow about learning from what others did.
