The iPod is a work of art and it brings back the utility of the original walkman, without the hiss. The promotional material for the Walkman 2 showed it hidden behind a compact cassette box. The iPod does the same thing – but contains 400 cassettes.
Cassette tape Walkmans have always been more ergonomic than CD Walkmans, which can’t fit the into most pockets. In fact, clothing dictates one of the most successful form factors: ‘pocket size’. Regardless of any other issues, MP3 players don’t have the problem that CD players have, and the iPod is almost exactly the same size at that other design classic Sony’s 1983 WM-20, cassette tape sized Walkman. The CD was never a successful portable form factor.