Tonight's updates from Xorg-Edgers included a new Synaptics touchpad driver. This driver causes the touchpad configuration settings module to crash on my system. If you're running Xorg-Edgers and have a touchpad, would you please update and then verify if yours crashes:
Please vote for my Launchpad bug #1002736 if yours also dies.
Code:
sudo apt-get update && sudo apt-get dist-upgrade kcmshell4 kcm_synaptiks