All research papers from Nature will be made free to read in a proprietary screen-view format that can be annotated but not copied, printed or downloaded, the journal’s publisher Macmillan announced on 2 December.
Nature makes all articles free to view (emphasis are mine).
Silly–and a real pain in the ass. At least, one will no longer need to rob a bank in order to read Nature or, worse than robbery, download a copy of it.