Yesterday LegbaCore updated their website to include some more research:
“Added the How Many Million BIOSes Would you Like to Infect whitepaper to our Research page. This document contains more discussion than was provided in the conference talks of what could be done by live OSes like Tails or LPS to be more secure against firmware threats.”
More information:
http://www.legbacore.com/Research.html
http://www.legbacore.com/News.html