A new article by the very talented Tom Hormby at LowEndMac.com.
"Newton was started as a project to out Mac the Macintosh. It was
started as a renegade venture to help Apple survive after the
Macintosh became obsolete. Instead, it created an overhyped device
marketed as a DayPlanner replacement rather than a constant companion."
Sculley's Dream: The Story Behind the Newton