Spot on it is a takeoff from the lat Benz IDI.To me this looks similar to Mercedes last IDI engines where they used over a dozen outlets on there pre-chambers. It's breaking up the flame front and distributing it across a greater area.
There was a Yahoo article that went with it, but I thought the video was better.Thanks for sharing. I read an article about this a few weeks ago. But it didn't go into that much detail on how it worked. If I remember correctly Ford has teamed up with these guy to bring this into production.
Biofuel and technically like this are going to keep the diesel engine alive long after gasoline engine are gone.