Pen-based computing

@article{Kurtenbach2010PenbasedC,
  title={Pen-based computing},
  author={Gordon Kurtenbach},
  journal={ACM Crossroads},
  year={2010},
  volume={16},
  pages={14-20}
}
Pens may seem old-fashioned, but some researchers think they are the future of interaction. Can they teach this old dog some new tricks?