I wish there more open-source libs offering commercial options. I don't want to see libraries I depend on being abandoned. Might also want to have access to support. I'm sure there are many companies who would pay and still want the project to be open source and have an active community. Sidekiq is one example of this which seem to be going quite well. I think it is a problem that very important projects are being developed for fun after work (openssl anyone). While I do not want the "pay for all libs" like in the .net world I do hope to see more for-profit open source projects.