In our scemario where a grid was created and we then used trap.nz to place traps at the grid points, having the compass work would simplify the initial walk to the next point. This could be either with the map rotating or with there being a pointer to north somewhere on map.
Nice idea, perhaps a orienting ring around the map centre/zoom button.
Yep that is that would work well and not get in the way of anything. I like less screen clutter.