[keymouse]

KeyMouse is also fully programmable (including the mouse motion and scroll/trackball), and like the Ergodox, you can place each hand in whatever is the most comfortable position, but you don't have to move your hands off the keyboard to use the mouse.

[antjanus]

Am I right to assume that the difference between the Track 127 and the ChairTrack 127 is just that the ChairTrack has the mounting bracket set included?

[keymouse]

(edited) Actually, no. For chair mount options, the ChairTrack just allows the device to sit over an armrest. Both Track and ChairTrack have chair mount options, but no brackets are included with the devices.