Yes. When I have my phone resting on a flat surface in front of me (say, a bar) I use the outside side of my pinky to scroll. I find it very natural since when my arms are in a neutral position in front of me, my palms are facing inwards and my pinkies are therefore closest to the bar (and the phone).
Also if I am eating a sandwich, my pinkies stay the cleanest.
Also if I am eating a sandwich, my pinkies stay the cleanest.