Skunkworks At Apple -- The Graphing Calculator Story

avitzur writes with a link to the story behind the Macintosh Graphing Calculator. An excerpt from this strange account: "It's midnight. I've been working sixteen hours a day, seven days a week. I'm not being paid. In fact, my project was canceled six months ago, so I'm evading security, sneaking into Apple Computer's main offices in the heart of Silicon Valley, doing clandestine volunteer work for an eight-billion-dollar corporation."