The bit I found interesting was the (almost) throw away comment about oil companies stopping Avgas production hence the R66 had to go to a turbine because "... we were going to get grounded..".
While Avgas will disappear one day, a lot of aircraft still use it. Will it mean a mass issue of STCs to fly on another gasoline type (mogas) and a restriction on altitude, or mass re-engine fitting of the 360 and 540 types?
Nice to see the man who has dominated so much of our lives for so long in person.
h-r