> I'm puzzled by the remaining use of inputSemaphore. Nobody makes any use
> of it within the image and so far as I can tell it only serves to give
> the VM a flag that events should be used.

And potentially the image a way to wait until events are received. That's
why I really left it in - at some point we might want to think about
changing Morphic's interCyclePause into something that essentially says:

    Sensor inputSemaphore waitTimeoutMSecs: intercyclePause.

(and intercyclePause really may take step times into account etc.)

Cheers,
  - Andreas