After 2-3 days of development and months of being too lazy to update this plugin on Package Control, there's now a new version!
Version 0.3.0 brings two (un)features:
1. The mouse is disabled when you're using any of the typewriter modes. (You can use the scroll wheel to look around, but clicking or selecting is blocked.)
2. Typing Mode positions the cursor at the end of the file and is much more robust at preventing you from moving the cursor.
Unfortunately, because of differences between the API of Sublime ST 2 and 3. The new (un)features are only available for ST 3. The old version is still available but will no longer be maintained.
Check it: https://sublime.wbond.net/packages/Typewriter