Have been using echo mode with pleasing results recently. But I think there is opportunity for development - add a third point to the path. This could either be two straight moves A-B and B-C or, potentially more useful a smoothed curve ABC. Would that add value to the current move?
I was thinking about this as well. My Osmo+ could do multiple points in a path when in Time-lapse mode and it was handy at times. I can see some situations where multiple ABCD+ would be handy with ability so smooth the transition between.