This would be awesome for people who are disabled. Voice input is still a pain and only works with a limited number of applications. If you could somehow switch between keyboard and tracking for the mouse pointer, this could give full use of a computer to many people.
The android keyboard version of Dasher is available in the F-droid repo: <a href="https://f-droid.org/app/dasher.android" rel="nofollow">https://f-droid.org/app/dasher.android</a>
This is really awesome. It looks hard, but it isn't. Here's a talk from 2007 that explains it well <a href="https://www.youtube.com/watch?v=wpOxbesRNBc" rel="nofollow">https://www.youtube.com/watch?v=wpOxbesRNBc</a>