The patch is not in working order. It is just a rough idea, and perhaps I should remove it from here. Unclutter (from comment #20) seems like it would work for all programs, although I just installed it and it didn't make my cursor disappear when running "unclutter -keyword". The best thing to do would be to enhance Unclutter and then have it installed by default, and set to hide the cursor when just the keyboard is in use.
The patch is not in working order. It is just a rough idea, and perhaps I should remove it from here. Unclutter (from comment #20) seems like it would work for all programs, although I just installed it and it didn't make my cursor disappear when running "unclutter -keyword". The best thing to do would be to enhance Unclutter and then have it installed by default, and set to hide the cursor when just the keyboard is in use.