Yes interesting, and Australian as well, and they seam to have money from China now as well. Great.
Imagine the CAD and machining capasity of that workshop. They only made one engine, but its fully CNC machined (not cast). It seams the only thing they didn't make was the aulternator.
I say a similar design a few years ago, also with horizontal pistons fixed together, except that engine ran with the pistons moving in Simple Harmonic Motion. This seams to be a slightly more advanced design, as they can change the cam grind and the pway the pistons move.
It would only have slight advantages once it is fully developed and tested. Its not going to change the world. Still burns petrol. I would not invest all my money in it.