The spinning wheel also had some inertia, which was really neat. You could give it a good spin and it would slowly "roll out". I think they tried to emulate tha

The spinning wheel also had some inertia, which was really neat. You could give it a good spin and it would slowly "roll out". I think they tried to emulate that with the round capacitive touch thingy ("click wheel"), but that wasn't quite as nice. I guess it was more dust/dirt/water resistant, though.