As well as Valvetronic. They're also doing research into camless engines, since at least the late 90's / early 2000's: http://www.nytimes.com/2003/08/21/technology/circuits/21next...

That's a partial solution, yes. It still requires cams.

I was referring to full-on solenoid control of valves without needing cams at all.

Actually two decades now.