oh, yes!!
Even small manoeuvrings onboard some CubeSats would come in handy.
All it takes is charge and I mean we are still a long way from full ion thrusters.
tbh after the success of the DAWN probe, I thought we'd be experimental. But space is all about redundancies and fail-safe and with the exuberant costs associated with the spacecraft many are still going for the tried and true.