A company I worked at had one of the guys behind the TrackPoint come in and give a technical talk once. He was great, absolutely obsessed with building a great user experience. The amount of thought and testing that went into that little nub was incredibly impressive. I'm not surprised that people love it so much.
Touchpads have a hard time competing on user experience because they need to be physically large to work well, and that's expensive.
Touchpads have a hard time competing on user experience because they need to be physically large to work well, and that's expensive.