It's a moral obligation under the social norm of reciprocity. If they wanted it ...

		nitrogen on March 20, 2013 \| parent \| context \| favorite \| on: What should you open source in your company It's a moral obligation under the social norm of reciprocity. If they wanted it to be a legal obligation, they would ask for it up front (which the GPL does). https://en.wikipedia.org/wiki/Norm_of_reciprocity