Microsoft tried "precision touchpad" and I think there was some uptake. But you never see it advertised anymore, so maybe it didn't drive many sales?

I can get on board with that. Just some kind of language to describe a touchpad in marketing material. Without it, it is hard to see, without living with it, how a touch pad differs across two or more devices. I tend to think of touchpads as Mac touch pads and non-touch pads. Even though that is wrong.