→Graffiti and Quikwriting: qwo update
Graffiti was the single-stroke handwriting system for Palm OS. It was the subject of a lawsuit from Xerox, which Palm lost.
Quikwriting was a research project that produced an alternative to the Graffiti method of text input. There is an open-source implementation called [http://nongnu.org/qwo/ QWO], but
the program appears not to work. Nonetheless, it can be made to work with a little bit of effort, most likely.
Other relevant links regarding Graffitti: