Does anyone actually use the sloooww arrow keys to navigate currently? Why not just increase the normal movement speed.
I do. The manufacturer of my laptop decided it was a bright idea to do away with the touchpad buttons to get more area for mouse movement. Bending the corners to do a right-click needs way too much mechanical force, so I am using 2-finger right-click emulation. Which means that I can't right-click and drag.
I am personally also not too fond of edge-scrolling - I keep messing up my viewport. I would not be against having it as an optional feature though.