Nice to see. Back in February I had a paper in Nature (with two co-authors) arguing for the same thing (http://www.nature.com/nature/journal/v482/n7386/full/nature1...). With this paper in Science (http://www.sciencemag.org/content/336/6078/159.summary) it means that the top two journals in the world have now published papers arguing for source code openness.

Probably time for an international cooperation on defining open code policies: http://blog.jgc.org/2012/04/more-support-for-open-software-i...