> Tactile feedback would be nice, but I'm not sure what that means.

Modern Mac trackpads don’t really click, they vibrate upon sensing a certain amount of force, and the sensory illusion is good enough to be indistinguishable from the real thing.

I’m only suggesting this tongue-in-cheek, but perhaps there’ll come a time when the Apple Pencil can micro-vibrate in such a way that is so convincing it will make you feel as if you’re dragging it on paper with configurable roughness.