As a first step in boycotting the publisher, the Association of Universities in the Netherlands (VSNU) has asked all scientists that are editor in chief of a journal published by Elsevier to give up their post. According to the VSNU in daily NRC, the reactions varied from very willing to consider this to some reluctance.
There is also reporting in Dutch by NRC Handelsblad.
I encourage all concerned editors to join the boycott. Of course, all other non-open-access publishers should be boycotted equally if there’s a concerted effort.