2007-06-07 WS011SH http://www.willcom-inc.com/ja/corporate/press/2007/06/07/index.html http://www.sharp.co.jp/ws/011sh/function/cursorkey.html http://gigazine.net/index.php?/news/comments/20070607_willcom_xw/ http://bb.watch.impress.co.jp/cda/news/18377.html