This is a nice way to write with joysticks:
https://faculty.washington.edu/wobbrock/pubs/gi-04.pdf
Unfortunately this idea is patented: U.S. Patent #7,729,542
http://depts.washington.edu/ewrite/
I think this patent is supposed to expire in 2027!
It should be nice if patents last for 10 years or less, it could help to make innovation more accessible for everybody.