http://japan.cnet.com/news/biz/story/0,2000050156,20078183,00.htm

http://japan.cnet.com/news/media/story/0,2000047715,20077923,00.htm

http://japan.cnet.com/news/media/story/0,2000047715,20078063,00.htm

http://www.itmedia.co.jp/news/articles/0412/03/news023.html