Added SublimeText3 support. SublimeText2 and SublimeText3 can be installed side by side.

They provide 'sublime', 'sublime2' and 'sublime3' commands. SublimeText3 has lower precedense than SublimeText2
because its in beta mode (for over a year now)

pkgs/applications/editors/sublime/default.nix

@@ -24,6 +24,7 @@ stdenv.mkDerivation rec {
     mkdir -p $out/bin
     mv Sublime* $out/sublime
     ln -s $out/sublime/sublime_text $out/bin/sublime
+    ln -s $out/sublime/sublime_text $out/bin/sublime2
 
     echo ${libPath}
     patchelf \

pkgs/applications/editors/sublime3/default.nix

@@ -0,0 +1,40 @@
+{ fetchurl, stdenv, glib, xlibs, cairo, gtk, pango}:
+let
+  libPath = stdenv.lib.makeLibraryPath [glib xlibs.libX11 gtk cairo pango];
+in
+assert stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux";
+
+stdenv.mkDerivation rec {
+  name = "sublimetext3-3.0.59";
+  src = 
+    if stdenv.system == "i686-linux" then
+      fetchurl {
+        name = "sublimetext-3.0.59.tar.bz2";
+        url = http://c758482.r82.cf2.rackcdn.com/sublime_text_3_build_3059_x32.tar.bz2;
+        sha256 = "5ee7b42b5db057108e97b86fd408124fc3f7b56662b2851f59d91f8f0c288088";
+      }
+    else
+      fetchurl {
+        name = "sublimetext-3.0.59.tar.bz2";
+        url = http://c758482.r82.cf2.rackcdn.com/sublime_text_3_build_3059_x64.tar.bz2;
+        sha256 = "da3039687664d33a734cea0151b2291ece9c7f35e5b73df5b2b5eac28a20b972";
+      };
+  buildCommand = ''
+    tar xvf ${src}
+    mkdir -p $out/bin
+    mv sublime_text_3 $out/sublime
+    ln -s $out/sublime/sublime_text $out/bin/sublime
+    ln -s $out/sublime/sublime_text $out/bin/sublime3
+
+    echo ${libPath}
+    patchelf \
+      --interpreter "$(cat $NIX_GCC/nix-support/dynamic-linker)" \
+      --set-rpath ${libPath}:${stdenv.gcc.gcc}/lib${stdenv.lib.optionalString stdenv.is64bit "64"} \
+      $out/sublime/sublime_text
+  '';
+
+  meta = {
+    description = "Sophisticated text editor for code, markup and prose";
+    license = "unfree";
+  };
+}

pkgs/top-level/all-packages.nix

@@ -8744,6 +8744,8 @@ let
   stumpwm = lispPackages.stumpwm;
 
   sublime = callPackage ../applications/editors/sublime { };
+  
+  sublime3 = lowPrio (callPackage ../applications/editors/sublime3 { });
 
   subversion = callPackage ../applications/version-management/subversion/default.nix {
     bdbSupport = true;