As a side note, but still nickel-related is this Sydney Morning Herald article about Andrew Forrests venture into the Windarra mine made infamous by the Poseidon find back in the early 70's.
http://www.smh.com.au/news/business/magnates-new-poseidon-adventure/2007/04/13/1175971360135.html
Had no idea our Chairman was involved in that project.