xorg, hal, udev && Touchpad/Mouse Toggle (>=xorg-server-1.5 < xorg-server-1.8)

I read, there were some changes between <xorg-server-1.5 and >=xorg-server-1.5. While I’ve updated my version to the latest possible (x11-base/xorg-server-1.6.0), I thought of using hal for my keyboard/touchpad/mouse-configuration.
The following configuration works for me:

Xorg && Touchpad/Mouse toggle (<xorg-server-1.5)

Following should help for turning the Touchpad off, when an external mouse is connected

[~]# cat /etc/udev/rules.d/10-local.rules
ACTION==”add”, SUBSYSTEM==”input”, ENV{ID_CLASS}=”mouse”, RUN+=”/usr/bin/synclient TouchpadOff=1″
ACTION==”remove”, SUBSYSTEM==”input”, ENV{ID_CLASS}=”mouse”, RUN+=”/usr/bin/synclient TouchpadOff=0″