Sony Walkman turns 30
When the Sony Walkman went on sale 30 years ago, it was shown off by a skateboarder to illustrate how the portable cassette-tape player delivered music on-the-go -- a totally innovative idea back in 1979.Today, Sony Corp. is struggling to reinvent itself and win back its reputation as a pioneer of razzle-dazzle gadgetry once exemplified in the Walkman, which Wednesday had its 30th anniversary marked with a special display at Sony's corporate archives. AP