[non-sense]

In this case he has promised: "Will publish Hyperloop as open source." I didn't see a catch here.

In the same context, SpaceX have not applied for many patents when compared to the work they are doing. However in this case the prime motive could be keep the tech secret.

[JonSkeptic]

Elon Musk is the only man alive who could promise the moon and make me want to believe that he means it. I hope he follows through, I want to believe that he will, and I have no reason to doubt; if anyone will do it, it will be him. Open source FTW.