One big piece of functionality missing from mouse-controlled maps is rotation. I can't imagine doing it with a mouse, but "grabbing" a map with two fingers and

One big piece of functionality missing from mouse-controlled maps is rotation. I can't imagine doing it with a mouse, but "grabbing" a map with two fingers and intuitively rotating it to the angle you want is huge. Similarly, two-finger swipe up/down to adjust viewing angle is something that could technically be done with a slider you drag with a mouse, but I definitely wouldn't call that better.