They are just adapting technology that Formula 1 race engine builders have been doing for close to 45 years now with their pneumatic valve opening and closing systems. Because of the extreme high RPM's seen in Formula 1 engines(often above 17,000 RPM), valve springs can't be used and pneumatic actuators are used to open and close the valves. They have just added computers to define when the valves open and close to replace the camshafts. That would be cool to program whatever cam profile you wanted to from your laptop without having to open the hood or get your hands greasy.
