Walt Mossberg has written the personal technology column at the Wall Street Journal for 22 years. In his final column, he lists the top 12 new items that he feels changed the industry. It is interesting to see that it was not that long ago that the things that are all around us and seem to have been around forever were invented, and how quickly those that were similarly ubiquitous before but did not last (Netscape, Palm Pilot) disappeared from our memories.