Does anybody know if there's been a keyboard with dual trackpoints, analogous to dual joysticks on game controllers? I'm almost certain this is whats required for precision mousing.
A software controller might look like this: one nub would move a modest sized circle (playing the roll of the hand) quickly around the screen, while the other would make precision movements within that region (playing the roll of fingers), snapping to clickable regions.
If you run Windows, you might enjoy my JKLmouse utility. I designed it for exactly the purpose you're talking about. You can use the TrackPoint for fast movement and seamlessly follow up with pixel-by-pixel movement using either IJKL (and neighboring keys for diagonals), HJKL, or the cursor keys. Also WASD or ESDF for the left hand.
This is similar to the MouseKeys built into Windows, but it's designed for laptop keyboards and does not require a 10-key pad.
Basically, whenever any mouse button is down, all the keys mentioned above become active as mouse movement keys. So just keep the button down and you can use TrackPoint/touchpad or the keyboard interchangeably.
To move the pointer without any mouse button down, you can hold down the Caps Lock key which also activates keyboard mouse control.
There's an installer, or you may prefer getting JKLmouse.ahk and launching it under AutoHotkey.
A software controller might look like this: one nub would move a modest sized circle (playing the roll of the hand) quickly around the screen, while the other would make precision movements within that region (playing the roll of fingers), snapping to clickable regions.