Just got around to using it.
My E7440 is also V3 Rushmore.
Touchpad works pretty well
Swiping and zooming works
Right click also work without any modification
Slow scrolling is a bit jittery if you don't pick your fingers off the touchpad.
Issue I have is that I do use the track stick a lot more than I would the touchpad
With this version, scrolling with the middle mouse doesn't work
I can't highlight with the left mouse of the track stick. Right click also works on the track stick.
If you could add those 2 feature, that would be awesome!