I wonder about emissions though... Would this mean that you should only use diesel-turbine electronic devices outside or in well-ventilated areas? I wonder also how much vibration and jostling (or just plain dropping) a 100000RPM rotor would tolerate while in opearation- such treatment is a certainty in military applications or in cell phones. Might take a while to work out some kinks there.

Myself, I'd be satisfied with a turbine engine the size of a V8 can... But I have R/C aircraft applications in mind. }:>