Steve Levy on the MacBook Air.
"Early in my writing career, I had an assignment to follow around a mohel--the guy who does ritual circumcisions in the Jewish tradition. My subject learned the trade by watching his dad, a renowned figure in the field. One day, father told son he was ready to handle the tools himself. Why now, the son wanted to know. "Most students ask me how much to take off," the senior explained. "You asked me how much to leave on."
Apple faced a similar question when designing the MacBook Air, the subnotebook computer that goes on sale next week."
Steven Levy is the author of the excellent book about the history of the Macintosh: "Insanely Great".