This is the device that coined the phrase, personal digital assistant (PDA). To own a Newton is to not only have access to a PDA that is a productivity workhorse in a modern information technology environment but to also own a prominent piece of computing history. A JOY TO USE There is no question that its user interface design is one of the best ever produced. Its ability to weave pen gestures and visual elements together with its model for storing and sharing data between applications creates a user interface that is intuitive and a joy to use. PRODUCTIVITY