"And a sleek appearance that relegates the traditional file-and-folder metaphor to the antique shop" for no other reason than Jobs had an acid flash. Files and folders make sense, and are excellent ways to organize things (and to engage in data redundancy, which isn't a bad idea). Jobs on the other hand has a penchant for bull****-edge technology, like the stringy-floppy on the first Apple III (the one which had the chips that popped out of their sockets as the board heated up), the single-sided 3.5 disk and lack of cursor keys on the original Mac, the RW drive on the NeXT box...