Ha, that's me. Thanks for posting this. It's late where I am but I can answer questions. I took a brief break on this topic after I graduated and worked on other stuff, but the company I'm at now has done a lot of subsequent work on this, including making it practical in the field. Though as I mentioned in the prior thread, bridging the valley of death and selling it as a product is still a challenge.
Australia had some fun with a lost mining source - rather than run a geophysics plane 80m above ground from mine to city they held off to test a gadget with some whirly stuff about a crystal pack ... as I understand it.
Any comment, or all still a bit unpublished?