Applications and Issues in Pen-Centric Computing

As part of the rapidly evolving field of designing more natural user interfaces for multimedia information, pen-centric computing refuses to disappear. As a quite natural and universal interface modality, it presents many challenges. In this article, the pen-centric computing group at Brown University, led by Andries Van Dam, surveys the many prototypes they have designed and implemented, and discuss the research issues in the field still to be explored.