I searched the engine forum for any links to this new range of engines after seeing discussions on the Rans site. I have no idea about them apart from thinking that it is our collective interests to look at any interesting alternatives.
Here are a couple of links to get started:
http://www.mwfly.it/index_file/homemwfy.htm
http://www.youtube.com/watch?v=n2ebpV6At-c
cheers
Ross
Building SS7
Oz