The original iPod was an absolute triumph. Scrolling with acceleration, great use of animation to transition between hierarchical views despite minimal graphical capabilities, auditory feedback. It did very few things (playback stored music and playlists curated on a larger and more capable machine), and it did them perfectly.
The end goal of UI/UX should be to make the job-to-be-done not just easy, but delightful. Great UX turns work into play.