Comment 20 for bug 358643

okay, that was fast:
1. purge/reinstall wacom-tools

sudo apt-get purge wacom-tools xserver-xorg-input-wacom

2. download:

http://ppa.launchpad.net/tjaalton/ppa/ubuntu/pool/main/x/xorg-server/xserver-xorg-core_1.6.0-0ubuntu11.1_i386.deb

and install

sudo dpkg -i xserver-xorg-core_1.6.0-0ubuntu11.1_i386.deb

then build the latest linuxwacom driver from sourceforge
(i think http://prdownloads.sourceforge.net/linuxwacom/linuxwacom-0.8.3-2.tar.bz2)?
and copy it:
sudo cp ./src/2.6.28/wacom.ko /lib/modules/`uname -r`/kernel/drivers/input/tablet/wacom.ko

(backup first...)

xorg.conf as attached.

that seems to do everything pretty much exactly as expected - no crashes yet.