Comment 41 for bug 754000

I agree touchpad owners should have the option of disabling Unity's 3-finger-touch gesture handling and getting 3-finger middle button emulation back. Such a general fix for touchpads would be in unity itself. I am only working on fixing clickpad support right now in xserver-xorg-input-synaptics.

The fix proposed in comment #35 is only intended to fix clickpads right now. However if you have a touchpad, then it is very helpful to know that the fix doesn't break anything. :)