Wacom tablet not working with 2.6.27-rc: kernel or X.org driver fault?

[dcg <diegocg@gmail.com>]

Hi, I just updated to Ubuntu Intrepid testing sources, which include
X.org 7.4, and as kernel I'm using the latest Linus' tree. And my
wacom tablet has stopped working properly, just like described in
https://bugs.launchpad.net/ubuntu/+source/wacom-tools/+bug/260675

As this bug appeared when I updated X.org I'd blame the X driver for
this bug (it's not a kernel regression), but there's people pointing
to a kernel patch [1] that updates the kernel driver to the latest
version to get this problem fixed, so I ask: Is there some bug in the
kernel wacom module that can be sent as a simple fix to -stable (2.6.27
will be released really soon), or have the linuxwacom people decided to
change the compatibility between the X <-> kernel wacom interfaces
without pushing the changes to one side, and then we must wait to 2.6.28
because it's an "improvement"?

It'd be interesting to get this issue fixed ASAP, as having stable
releases of X.org and Linux which can't work together is not very
nice, specially for the ones of us that use a tablet as mouse.

[1]: http://launchpadlibrarian.net/17948041/wacom-1.49.patch