Point (b), since the connection is via bluetooth, it doesn't have to sit on the handle bar, you could just put it in your pocket. I think it is just for ease of

Point (b), since the connection is via bluetooth, it doesn't have to sit on the handle bar, you could just put it in your pocket. I think it is just for ease of access and view. The mount does have straps it says, to buckle it down in rougher terrain.