ThinkpadX61_AutoRotate.sh

#!/bin/bash

old="0"
while true; do
	if [[ -e /sys/devices/platform/thinkpad_acpi/hotkey_tablet_mode ]]; then
		new=`cat /sys/devices/platform/thinkpad_acpi/hotkey_tablet_mode`
		if [[ $new != $old ]]; then
			if [[ $new == "1" ]]; then
				echo "Rotate to landscape"
				xsetwacom set "Wacom Serial Penabled Pen stylus" rotate half
				xrandr -o left # Workaround for DE bug
				xrandr -o inverted
			elif [[ $new == "0" ]]; then
				echo "Rotate to portrait"
				xsetwacom set "Wacom Serial Penabled Pen stylus" rotate none
				xrandr -o right # Workaround for DE bug
				xrandr -o normal
			fi
		fi
		old=$new
		sleep 1s
	fi
done

# From Red_Lion post #576:  http://ubuntuforums.org/showthread.php?t=845911&page=58