The questions that came to my mind, as answered by internet sources
$3 per pound in 45# boxes FOB
9 lbs/yard for a slab, 15 lbs/yard for a wall/footer
You can pour a slab using the ICF blocks, from the video it looks like they poured the walls and slab separately
The steel fibers settle with the aggregate, and do not stick up out of the slab
Not sure if this is a path worth pursing for a small build, or a technology that is just not mature enough for use by the small builder yet.
I'm going to check on the local availability of this stuff and see where that takes me.