TuxMobilA great site for all linux laptop users, offers detailed information about the X11 touchpad driver and its installation.
X11 synaptics touch pad driverHere you can download the latest synaptics touch pad driver, and find more information on how to install / configure it.
Peter Osterlund's X11 synaptics driver
Synaptics XFree driver debian package
Sourceforge project pageHere you can check on the sourceforge project details
The General Public LicenseHere you can read in detail the license qsynaptics is released under.
You can distribute the source and even change it, as long as you release your changes under the GPL as well and your release reveals the original author(s).
The GPL v2 in detail
(c) 2004 by Stefan Kombrink