Are you serious? There is nothing wrong with using code from Visor or Chromium in closed-source commercial app. They have liberal licenses.<p>In binaryage.com I've created like 5 serious open-source tools being used by 50k developers daily (most of them probably also making money with them). And I've got back less than $50 in donations during last 6 months. This is not a viable model if I want to support myself working on similar tools in the future.