I found the talk given by... Linus Torvalds's boss in a Portland TED talk to be quite convincing that the open source movement is good for society, much better than the alternative closed-source model, and the present and the future. There is room for closed source, but not at the OS level today, and probably not at the productivity or enterprise software level either. One more thought. I have mixed feelings about technology today. We used to be "the hacker of the neighbourhood" back in the 80s. It got us to use new technologies and to respect them at the same time. The second is the key statement. Alongside preaching uses of certain technologies, please embed the idea of respect. And by respect I mean people should experiment with technologies, use them, exploit them to get ahead, but at the same time we need to be able to live without it, and deal with not having it available at times.