非常に面白い変遷の歴史です。
http://hotwired.goo.ne.jp/news/technology/story/20060329304.html
http://wiredblogs.tripod.com/apple_os/index.album?i=0
http://japan.cnet.com/special/story/0,2000050158,20099801,00.htm?ref=rss
http://japan.cnet.com/special/story/0,2000050158,20099841,00.htm?ref=rss