This laptop has both a touchpad and trackpoint (little red nub in the middle of the keyboard that acts like a mouse-joystick). Mouse Speed Switcher lists two devices, a "Synaptics Pointing Device", which triggers when I use the trackpoint nub, and a "HID-compliant mouse", which does not seem to be triggered by either the nub or the touchpad.
If I plug in a USB mouse, a second "HID-compliant mouse" is listed, and that one I does register with Mouse Speed Switcher, and properly switches when I move the mouse.
So right now, despite having all 3 devices setup in Mouse Speed Switcher, only the USB mouse and the nub will cause Mouse Speed Switcher to react. The touchpad does not.
Here's my configuration:
