I installed 1:0.10.8-0ubuntu1~xup2~lucid from the ubuntu-x-swat PPA and can confirm that the driver update fixes the problem on my Intuos4 tablet.
WRT the problem on natty: xf86-input-wacom-0.10.11 uses the PAD device in absolute mode (again). #774938 (in particular its patch 503_fix_masked_transformed_valuators.patch) likely introduced a bug which prevents using the PAD device in absolute mode.
I installed 1:0.10. 8-0ubuntu1~ xup2~lucid from the ubuntu-x-swat PPA and can confirm that the driver update fixes the problem on my Intuos4 tablet.
WRT the problem on natty: xf86-input- wacom-0. 10.11 uses the PAD device in absolute mode (again). #774938 (in particular its patch 503_fix_ masked_ transformed_ valuators. patch) likely introduced a bug which prevents using the PAD device in absolute mode.