Google shoots you down. I was going to post this asking Ian or Dave if they've come across an engine layout similar to it in their Moto-info gallivanting.
It's a counter-rotating crank twin, the difference from the others I know of being that the cylinders in this layout would converge at the top to a single head with DOHCs. the purpose would be to eliminate any gyroscopic effects on a bike with a non-transverse.. or axial (if I may use that word again) crankshaft. And it'd be super torquey.
This is the closest I could find: Neander's turbo diesel with two cranks and two conn rods going to each piston. Queer. Thoughts?