How can I use three fingers to drag on the touchpad of a MacBook Pro?

I have a MacBook Pro running Ubuntu 14.04, with Unity on it. By default, Unity has a three-finger gesture that invokes the Alt-Tab launcher. But I really like the OS X-style three-finger drag gesture.

Is there any way to override the default settings and use the gesture from OS X?

If I understand correctly, 3 finger drag does not equal to 3 finger gestures. When you do a 3 finger drag the pointer moves with your fingers, but when you do a 3 finger gesture the pointer remains in the same place.

I have done some modifications to the Synaptics Xorg driver to add support for 3-finger drag in Xubuntu: https://github.com/quadpixels/three-finger-dragging

This is a video showing how it works ... https://www.youtube.com/watch?v=4eLSEtibfyw

And unfortunately you have to compile it from source ...

Note: this is only for my personal test, it comes without any warranty. I have tested it only on a Magic Trackpad, but I think it should also work with MacBook's trackpad.

:)

From Ububtu 13.04 seems to be possible to use touchegg package

There's one reference you can find interesting OS X-like multitouch gestures for Macbook Pro running Ubuntu about how to disable Unity default multitouch gestures and bring in OS X like touchpad gestures.