Will any upcoming model have an emergency stop button?

Hi,

Really like your project and will follow your progress.

Been working with technology all my life. As such I've seen machines do crazy, completely unexpected things on rare occassions.

Is there, or will there be an emergency stop switch on any upcoming models in order to instantly cut power to unit in the event of an unexpected and un-commanded action?

If so, is it accessible from all directions? I.e. positioned on head or both shoulders.

Thanks