Hi,
It's fully open-source under the Apache-2.0 license so those are the terms...
the copyright has now transferred the the JS foundation - but apart from that no other change.
Hopefully no big implications of moving to JS foundation other than that it is now as open as we can make it, and the governance should get a bit more formalised. We're not quite sure the form(s) this will take yet, but will be sure to let everyone know as soon awe work anything out. Nick and I certainly intend to keep Node-RED on a growing path, and aren't planning on being diverted, but looking forwards to the continued ideas and contributions from the now wider community.