IMO, This Tech is long overdue. Myself and 3 others are fortunate survivors of a smoke in the cockpit (and cabin) incident. It was the result of an electrical short during cruise. From the first wisp, to not being able to see a hand in front of my face was about 30 seconds. I was able to get the situation under control by isolating electrical power; though it was a pretty scary few minutes... As soon as I could see, I also initiated an emergency descent, to about 500 AGL. I would love to see these in all aircraft.