Courtesy of the Australian Science Establishment and with a little help from DARPA:
I remember seeing a presentation by the lead professor who was working on this project back in 2004 in Adelaide. They had VERY LITTLE funding, scrambled to find surplus parts and a few sponsors, and yet managed to get some great initial readings which led to further experimental testing and now this.
Kudos to all involved.
And also to Matt Metcalf at Sufficiently Advanced, for being another sane voice in the wilderness in recognising that it is this sort of development, which will then be deployed first in the military environment, that will eventually come down to the civilian/private sector and be yet another piece in the eventual creation of cheap reliable reusable access to space.