Except this is not what the asus-touchpad.sh script in the archive does at all! :) The one in the archive is known broken, apparently you have one that's quite a bit closer to functional than what we have in the archive right now -- perhaps you could post that version?
TPSTATUS=`xinput list-props $XINPUTNUM | grep "Synaptics Off" | cut -f4`
Except this is not what the asus-touchpad.sh script in the archive does at all! :) The one in the archive is known broken, apparently you have one that's quite a bit closer to functional than what we have in the archive right now -- perhaps you could post that version?