Before I read the article, I was assuming it was talking about how developers who are producers in the open source ecosystem deserve a premium. But, the article is about how tools/technologies that are open sourced are hot skills. I think that is a shill piece for a recruiting firm to attract potential candidates. Most of the developers I know like open source because they're free and in many instances better than what you can pay for. The article mentions AIR being one of those hot open source technologies. AIR was open sourced just recently (if you do the paternity test, Adobe gave birth to it as a proprietary and expensive technology)