Reverse mouse wheel direction (aka Natural Scrolling) doesn't work in nautilus and other ubuntu applications since updating to 12.04

Up to ubuntu 11.10 it was possible to reverse the direction of the mouse wheel by appling a xmodmap with "pointer = 1 2 3 5 4 6 7 8 9 10 11 12".
This now still works in Firefox but not in Nautilus, Software center, Gedit and others.

"Natural Scrolling" is probably not for everyone but for those who work with OSX or tablet computers side by side with an ubuntu PC. (So please don't flame on it to be 'just' a bad idea because it's from Apple...)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: nautilus 1:3.4.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Mon Apr 30 17:02:44 2012
GsettingsChanges:
 org.gnome.nautilus.window-state geometry '1044x671+49+24'
 org.gnome.nautilus.window-state start-with-status-bar true
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: nautilus
UpgradeStatus: Upgraded to precise on 2012-04-30 (0 days ago)