Interesting to hear. Not sure how this half-open/half-closed source will work. Something like Red Hat? Then what about a CentOS equivalent for Atom?
This looks like they're going to allow people to view the source code, but not actually use it. My impression is that it would be similar to Assembla's not-really-open-source license [1]
[1] https://www.assembla.com/wiki/show/breakoutdocs/Singleton_De...