diff --git a/pkgs/desktops/kde-4.4/base-workspace/builder.sh b/pkgs/desktops/kde-4.4/base-workspace/builder.sh
deleted file mode 100644
index 97aba633c560..000000000000
--- a/pkgs/desktops/kde-4.4/base-workspace/builder.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-source $stdenv/setup
-
-myPatchPhase()
-{
-    for i in plasma/applets/systemtray/CMakeLists.txt plasma/applets/systemtray/notificationitemwatcher/CMakeLists.txt
-    do
-        sed -i -e "s|\${KDE4_DBUS_INTERFACES_DIR}|$kdelibs_experimental/share/dbus-1|" $i
-    done
-}
-patchPhase=myPatchPhase
-genericBuild
diff --git a/pkgs/desktops/kde-4.4/base-workspace/default.nix b/pkgs/desktops/kde-4.4/base-workspace/default.nix
index e574862c0bbe..ea93a625ed8a 100644
--- a/pkgs/desktops/kde-4.4/base-workspace/default.nix
+++ b/pkgs/desktops/kde-4.4/base-workspace/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, lib, cmake, perl, python, pam, ConsoleKit
-, qt4, sip, pyqt4, kdelibs, kdelibs_experimental, kdepimlibs, kdebindings
+, qt4, sip, pyqt4, kdelibs, kdepimlibs,
 , libXi, libXau, libXdmcp, libXtst, libXcomposite, libXdamage, libXScrnSaver
 , lm_sensors, libxklavier, libusb, libpthreadstubs, boost
 , automoc4, phonon, strigi, soprano, qimageblitz, akonadi, polkit_qt
@@ -11,9 +11,7 @@ stdenv.mkDerivation {
     url = mirror://kde/stable/4.4.0/src/kdebase-workspace-4.4.0.tar.bz2;
     sha256 = "16rc4cpq97bfcvj0bmq9k3kv48gjbx8569m7lg3qm91xg8nz79hn";
   };
-  inherit kdelibs_experimental;
-  builder = ./builder.sh;
-  buildInputs = [ cmake perl python qt4 pam /*ConsoleKit sip pyqt4*/ kdelibs kdelibs_experimental kdepimlibs /*kdebindings*/ libpthreadstubs boost libusb stdenv.gcc.libc
+  buildInputs = [ cmake perl python qt4 pam /*ConsoleKit sip pyqt4*/ kdelibs kdepimlibs /*kdebindings*/ libpthreadstubs boost libusb stdenv.gcc.libc
                   libXi libXau libXdmcp libXtst libXcomposite libXdamage libXScrnSaver
                   lm_sensors libxklavier automoc4 phonon strigi soprano qimageblitz akonadi polkit_qt ];
   meta = {
diff --git a/pkgs/desktops/kde-4.4/default.nix b/pkgs/desktops/kde-4.4/default.nix
index cc672b6a396e..2d1dc4369412 100644
--- a/pkgs/desktops/kde-4.4/default.nix
+++ b/pkgs/desktops/kde-4.4/default.nix
@@ -65,15 +65,13 @@ pkgs.recurseIntoAttrs (rec {
     inherit (pkgs.xlibs) libXScrnSaver;
     inherit automoc4 phonon strigi soprano qca2 attica polkit_qt;
   };
-
-  kdelibs_experimental = null;
   
 ### BASE  
   kdebase_workspace = import ./base-workspace {
     inherit (pkgs) stdenv fetchurl lib cmake qt4 perl python pam sip pyqt4;
     inherit (pkgs) lm_sensors libxklavier libusb boost ConsoleKit;
     inherit (pkgs.xlibs) libXi libXau libXdmcp libXtst libXcomposite libXdamage libXScrnSaver libpthreadstubs;
-    inherit kdelibs kdelibs_experimental kdepimlibs kdebindings;
+    inherit kdelibs kdepimlibs kdebindings;
     inherit automoc4 phonon strigi soprano qimageblitz akonadi polkit_qt;
   };
   
@@ -141,7 +139,7 @@ pkgs.recurseIntoAttrs (rec {
   kdemultimedia = import ./multimedia {
     inherit (pkgs) stdenv fetchurl lib cmake perl qt4;
     inherit (pkgs) alsaLib xineLib libvorbis flac taglib cdparanoia lame;
-    inherit kdelibs kdelibs_experimental;
+    inherit kdelibs;
     inherit automoc4 phonon;
   };
   
@@ -157,14 +155,14 @@ pkgs.recurseIntoAttrs (rec {
     inherit (pkgs) stdenv fetchurl lib cmake qt4 perl boost gpgme libassuan libgpgerror libxslt;
     inherit (pkgs) shared_mime_info;
     inherit (pkgs.xlibs) libXScrnSaver;
-    inherit kdelibs kdelibs_experimental kdepimlibs;
+    inherit kdelibs kdepimlibs;
     inherit automoc4 phonon akonadi strigi soprano qca2;
   };
   
   kdepim_runtime = import ./pim-runtime {
     inherit (pkgs) stdenv fetchurl lib cmake qt4 perl libxml2 libxslt boost;
     inherit (pkgs) shared_mime_info;
-    inherit kdelibs kdelibs_experimental kdepimlibs;
+    inherit kdelibs kdepimlibs;
     inherit automoc4 phonon akonadi soprano strigi;
   };
   
@@ -188,7 +186,7 @@ pkgs.recurseIntoAttrs (rec {
     
   kdeutils = import ./utils {
     inherit (pkgs) stdenv fetchurl lib cmake qt4 perl python gmp libzip libarchive xz sip pyqt4 pycups system_config_printer;
-    inherit kdelibs kdelibs_experimental kdepimlibs kdebase kdebindings;
+    inherit kdelibs kdepimlibs kdebase kdebindings;
     inherit automoc4 phonon qimageblitz qca2;
   };
   
diff --git a/pkgs/desktops/kde-4.4/multimedia/default.nix b/pkgs/desktops/kde-4.4/multimedia/default.nix
index e6c497318969..ed31e2823e2a 100644
--- a/pkgs/desktops/kde-4.4/multimedia/default.nix
+++ b/pkgs/desktops/kde-4.4/multimedia/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, lib, cmake, perl, qt4, alsaLib, libvorbis, xineLib, taglib, flac, cdparanoia, lame
-, kdelibs, kdelibs_experimental, automoc4, phonon}:
+, kdelibs, automoc4, phonon}:
 
 stdenv.mkDerivation {
   name = "kdemultimedia-4.4.0";
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
     sha256 = "0zvllvwj2nj7qh9jq5048d37jj55cml7d0y1k4rk1ba31mmp7vrn";
   };
   buildInputs = [ cmake perl qt4 alsaLib libvorbis xineLib flac taglib cdparanoia lame
-                  kdelibs kdelibs_experimental automoc4 phonon ];
+                  kdelibs automoc4 phonon ];
   meta = {
     description = "KDE Multimedia";
     longDescription = ''
diff --git a/pkgs/desktops/kde-4.4/pim-runtime/default.nix b/pkgs/desktops/kde-4.4/pim-runtime/default.nix
index d8bf0393be29..371520449d9f 100644
--- a/pkgs/desktops/kde-4.4/pim-runtime/default.nix
+++ b/pkgs/desktops/kde-4.4/pim-runtime/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, lib, cmake, qt4, perl, libxml2, libxslt, boost, shared_mime_info
-, kdelibs, kdelibs_experimental, kdepimlibs
+, kdelibs, kdepimlibs
 , automoc4, phonon, akonadi, soprano, strigi}:
 
 stdenv.mkDerivation {
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
     sha256 = "1nfzxhc2la8p4nhgbrngqz3a5ymz9783nqpl82y7dsawbn7il2z1";
   };
   buildInputs = [ cmake qt4 perl libxml2 libxslt boost shared_mime_info
-                  kdelibs kdelibs_experimental kdepimlibs
+                  kdelibs kdepimlibs
 		  automoc4 phonon akonadi soprano strigi ];
   builder = ./builder.sh;
   meta = {
diff --git a/pkgs/desktops/kde-4.4/pim/default.nix b/pkgs/desktops/kde-4.4/pim/default.nix
index a2231ee2c180..a950b3dc9a9c 100644
--- a/pkgs/desktops/kde-4.4/pim/default.nix
+++ b/pkgs/desktops/kde-4.4/pim/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, lib, cmake, qt4, perl, boost, gpgme, libassuan, libgpgerror, libxslt
 , shared_mime_info, libXScrnSaver
-, kdelibs, kdelibs_experimental, kdepimlibs, automoc4, phonon, akonadi, strigi, soprano, qca2}:
+, kdelibs, kdepimlibs, automoc4, phonon, akonadi, strigi, soprano, qca2}:
 
 stdenv.mkDerivation {
   name = "kdepim-4.4.0";
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   builder = ./builder.sh;  
   buildInputs = [ cmake qt4 perl boost gpgme stdenv.gcc.libc libassuan libgpgerror libxslt
                   shared_mime_info libXScrnSaver
-                  kdelibs kdelibs_experimental kdepimlibs automoc4 phonon akonadi strigi soprano qca2 ];
+                  kdelibs kdepimlibs automoc4 phonon akonadi strigi soprano qca2 ];
   meta = {
     description = "KDE PIM tools";
     longDescription = ''
diff --git a/pkgs/desktops/kde-4.4/utils/default.nix b/pkgs/desktops/kde-4.4/utils/default.nix
index c4af85eb3f21..86815c3583bf 100644
--- a/pkgs/desktops/kde-4.4/utils/default.nix
+++ b/pkgs/desktops/kde-4.4/utils/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, lib, cmake, qt4, perl, gmp, python, libzip, libarchive, xz
 , sip, pyqt4, pycups, system_config_printer
-, kdelibs, kdelibs_experimental, kdepimlibs, kdebase, kdebindings, automoc4, phonon, qimageblitz, qca2}:
+, kdelibs, kdepimlibs, kdebase, kdebindings, automoc4, phonon, qimageblitz, qca2}:
 
 stdenv.mkDerivation {
   name = "kdeutils-4.4.0";
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   inherit system_config_printer;
   
   buildInputs = [ cmake qt4 perl gmp python libzip libarchive xz sip pyqt4 pycups system_config_printer
-                  kdelibs kdelibs_experimental kdepimlibs kdebase kdebindings automoc4 phonon qimageblitz qca2 ];
+                  kdelibs kdepimlibs kdebase kdebindings automoc4 phonon qimageblitz qca2 ];
                   
   meta = {
     description = "KDE Utilities";