Asus B121 integrated wacom tablet not recognized

The Asus B121/EP121 tablet comes with a Wacom digitizer/stylus, which is currently not included in libwacom/data.
I am also including the file xinput-list which contains the output of the xinput list command.

As a consequence, the eraser is not recognized, nor it produces a mouse right-click when pressed.

I would like to thank you for you work.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: libwacom-common 0.5-1
ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
Uname: Linux 3.5.0-10-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.4-0ubuntu8
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Thu Aug 16 18:10:39 2012
Dependencies:

DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.18, 3.5.0-10-generic, i686: installed
 virtualbox, 4.1.18, 3.5.0-9-generic, i686: installed
EcryptfsInUse: Yes
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:1be2]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: ASUSTeK Computer Inc. B121
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=8ba5bc17-6c93-42dd-92d7-f01ec7cb30e2 ro quiet splash vt.handoff=7
SourcePackage: libwacom
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/14/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 302
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: B121
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr302:bd09/14/2011:svnASUSTeKComputerInc.:pnB121:pvr1.0:rvnASUSTeKComputerInc.:rnB121:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: B121
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu4
version.libdrm2: libdrm2 2.4.38-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.12.1.902-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~really6.14.4-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-1build1