diff --git a/Gemfile b/Gemfile
index f4971264..38a007b4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source :rubygems
 
 gemspec
 
-gem "cucumber", "~> 0.9.2"
+gem "cucumber", "~> 1.1.0"
 gem "rspec", "~>2.0.0"
 gem "rails", "~>3.0.0.rc"
 gem "compass-validator", "3.0.1"
@@ -18,6 +18,6 @@ gem 'mocha'
 gem 'timecop'
 gem 'diff-lcs', '~> 1.1.2'
 
-gem 'rake', '0.8.7'
+gem 'rake', '~> 0.9.2'
 
 #Warning becarful adding OS dependant gems to this file it will cause issues on the CI server
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index c4b8f64f..642290be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    compass (0.12.0.alpha.0.91a748a)
+    compass (0.12.alpha.0.d794394)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)
       sass (~> 3.1)
@@ -39,16 +39,16 @@ GEM
     addressable (2.2.6)
     arel (2.0.10)
     builder (2.1.2)
-    chunky_png (1.2.1)
+    chunky_png (1.2.5)
     compass-validator (3.0.1)
     css_parser (1.0.1)
-    cucumber (0.9.4)
-      builder (~> 2.1.2)
-      diff-lcs (~> 1.1.2)
-      gherkin (~> 2.2.9)
-      json (~> 1.4.6)
-      term-ansicolor (~> 1.0.5)
-    diff-lcs (1.1.2)
+    cucumber (1.1.0)
+      builder (>= 2.1.2)
+      diff-lcs (>= 1.1.2)
+      gherkin (~> 2.5.0)
+      json (>= 1.4.6)
+      term-ansicolor (>= 1.0.6)
+    diff-lcs (1.1.3)
     em-dir-watcher (0.9.4)
     em-websocket (0.3.1)
       addressable (>= 2.1.1)
@@ -57,12 +57,11 @@ GEM
       abstract (>= 1.0.0)
     eventmachine (0.12.10)
     fssm (0.2.7)
-    gherkin (2.2.9)
-      json (~> 1.4.6)
-      term-ansicolor (~> 1.0.5)
-    haml (3.1.2)
+    gherkin (2.5.1)
+      json (>= 1.4.6)
+    haml (3.1.3)
     i18n (0.5.0)
-    json (1.4.6)
+    json (1.6.1)
     livereload (1.6)
       em-dir-watcher (>= 0.1)
       em-websocket (>= 0.1.2)
@@ -72,10 +71,12 @@ GEM
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
+    metaclass (0.0.1)
     mime-types (1.16)
-    mocha (0.9.12)
+    mocha (0.10.0)
+      metaclass (~> 0.0.1)
     polyglot (0.3.2)
-    rack (1.2.3)
+    rack (1.2.4)
     rack-mount (0.6.14)
       rack (>= 1.0.0)
     rack-test (0.5.7)
@@ -94,9 +95,9 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.4)
-    rake (0.8.7)
+    rake (0.9.2)
     rcov (0.9.10)
-    rdoc (3.9.2)
+    rdoc (3.9.4)
     rspec (2.0.1)
       rspec-core (~> 2.0.1)
       rspec-expectations (~> 2.0.1)
@@ -126,13 +127,13 @@ DEPENDENCIES
   compass!
   compass-validator (= 3.0.1)
   css_parser (~> 1.0.1)
-  cucumber (~> 0.9.2)
+  cucumber (~> 1.1.0)
   diff-lcs (~> 1.1.2)
   haml (~> 3.1)
   livereload
   mocha
   rails (~> 3.0.0.rc)
-  rake (= 0.8.7)
+  rake (~> 0.9.2)
   rcov
   rspec (~> 2.0.0)
   ruby-prof
diff --git a/Rakefile b/Rakefile
index 40e25323..7fcfe035 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,7 @@
 require 'rubygems'
 require 'bundler'
 Bundler.setup
+require 'rake/dsl_definition' rescue nil
 require 'compass'
 
 # ----- Default: Testing ------
diff --git a/bin/compass b/bin/compass
index c174ce02..13c47e68 100755
--- a/bin/compass
+++ b/bin/compass
@@ -36,5 +36,5 @@ if ARGV.delete("--profile")
   printer.print(STDERR, 0)
   exit exit_code
 else
-  exit runner.call
+  exit runner.call || 0
 end
diff --git a/doc-src/content/CHANGELOG.markdown b/doc-src/content/CHANGELOG.markdown
index 92b80b26..da287628 100644
--- a/doc-src/content/CHANGELOG.markdown
+++ b/doc-src/content/CHANGELOG.markdown
@@ -20,6 +20,8 @@ The Documentation for the [latest preview release](http://beta.compass-style.org
 * font-files helper: Stop requiring font type when the type can be guessed from URL
 * inline-font-files: actually works now
 * Upgrade CSS3 Pie to 1.0beta5
+* log sprite generation and removal to the console
+* Added a new helper function `compass-env()` that returns the current compass environment (development, production)
 
 
 0.12.alpha.0 (8/30/2011)
diff --git a/frameworks/compass/stylesheets/compass/css3/_font-face.scss b/frameworks/compass/stylesheets/compass/css3/_font-face.scss
index abb0bc53..bbca5fb4 100644
--- a/frameworks/compass/stylesheets/compass/css3/_font-face.scss
+++ b/frameworks/compass/stylesheets/compass/css3/_font-face.scss
@@ -46,18 +46,3 @@
     }
   }
 }
-
-// EXAMPLE
-// +font-face("this name", font-files("this.woff", "woff", "this.otf", "opentype"), "this.eot", bold, italic)
-//
-// will generate:
-//
-//   @font-face { 
-//     font-family: 'this name'; 
-//     src: url('fonts/this.eot'); 
-//     src: local("☺"),
-//       url('fonts/this.otf') format('woff'), 
-//       url('fonts/this.woff') format('opentype'); 
-//     font-weight: bold;
-//     font-style: italic;
-//   }
diff --git a/lib/compass/app_integration/rails/actionpack31/helpers.rb b/lib/compass/app_integration/rails/actionpack31/helpers.rb
index 2728462f..819e4242 100644
--- a/lib/compass/app_integration/rails/actionpack31/helpers.rb
+++ b/lib/compass/app_integration/rails/actionpack31/helpers.rb
@@ -8,7 +8,7 @@ end
 module Compass::RailsImageFunctionPatch
   private
   
-  def image_path(image_file)
+  def image_path_for_size(image_file)
     if file = ::Rails.application.assets.find_asset(image_file)
       return file
     end
diff --git a/lib/compass/compiler.rb b/lib/compass/compiler.rb
index a1006c21..345adb50 100644
--- a/lib/compass/compiler.rb
+++ b/lib/compass/compiler.rb
@@ -17,6 +17,7 @@ module Compass
       self.sass_options[:importer] = self.importer = Sass::Importers::Filesystem.new(from)
       self.sass_options[:compass] ||= {}
       self.sass_options[:compass][:logger] = self.logger
+      self.sass_options[:compass][:environment] = Compass.configuration.environment
       self.staleness_checker = Sass::Plugin::StalenessChecker.new(sass_options)
     end
 
diff --git a/lib/compass/configuration/data.rb b/lib/compass/configuration/data.rb
index 2bd3b997..45c9e0c4 100644
--- a/lib/compass/configuration/data.rb
+++ b/lib/compass/configuration/data.rb
@@ -38,6 +38,12 @@ module Compass
       define_callback :sprite_generated
       chained_method :run_sprite_generated
 
+      # on_sprite_removed
+      # yields the filename
+      # usage: on_sprite_removed {|filename| do_something(filename) }
+      define_callback :sprite_removed
+      chained_method :run_sprite_removed
+
       # on_stylesheet_saved
       # yields the filename
       # usage: on_stylesheet_saved {|filename| do_something(filename) }
diff --git a/lib/compass/sass_extensions/functions.rb b/lib/compass/sass_extensions/functions.rb
index 99cf687a..a87916d5 100644
--- a/lib/compass/sass_extensions/functions.rb
+++ b/lib/compass/sass_extensions/functions.rb
@@ -2,9 +2,10 @@ module Compass::SassExtensions::Functions
 end
 
 %w(
-  selectors enumerate urls display
+  selectors    enumerate  urls      display
   inline_image image_size constants gradient_support
-  font_files lists colors trig sprites cross_browser_support
+  font_files   lists      colors    trig
+  sprites      env        cross_browser_support
 ).each do |func|
   require "compass/sass_extensions/functions/#{func}"
 end
@@ -24,6 +25,7 @@ module Sass::Script::Functions
   include Compass::SassExtensions::Functions::Trig
   include Compass::SassExtensions::Functions::Sprites
   include Compass::SassExtensions::Functions::CrossBrowserSupport
+  include Compass::SassExtensions::Functions::Env
 end
 
 # Wierd that this has to be re-included to pick up sub-modules. Ruby bug?
diff --git a/lib/compass/sass_extensions/functions/env.rb b/lib/compass/sass_extensions/functions/env.rb
new file mode 100644
index 00000000..ae9cd66d
--- /dev/null
+++ b/lib/compass/sass_extensions/functions/env.rb
@@ -0,0 +1,5 @@
+module Compass::SassExtensions::Functions::Env
+  def compass_env
+    Sass::Script::String.new((options[:compass][:environment] || "development").to_s)
+  end
+end
diff --git a/lib/compass/sass_extensions/functions/sprites.rb b/lib/compass/sass_extensions/functions/sprites.rb
index da193f8e..e6506a66 100644
--- a/lib/compass/sass_extensions/functions/sprites.rb
+++ b/lib/compass/sass_extensions/functions/sprites.rb
@@ -120,6 +120,8 @@ module Compass::SassExtensions::Functions::Sprites
   #
   #     background-position: 3px -36px;
   def sprite_position(map, sprite = nil, offset_x = ZERO, offset_y = ZERO)
+    assert_type offset_x, :Number
+    assert_type offset_y, :Number
     sprite = convert_sprite_name(sprite)
     verify_map(map, "sprite-position")
     unless sprite && sprite.is_a?(Sass::Script::String)
diff --git a/lib/compass/sass_extensions/sprites/sprite_methods.rb b/lib/compass/sass_extensions/sprites/sprite_methods.rb
index bd905247..95e5dda8 100644
--- a/lib/compass/sass_extensions/sprites/sprite_methods.rb
+++ b/lib/compass/sass_extensions/sprites/sprite_methods.rb
@@ -60,20 +60,21 @@ module Compass
             Compass.configuration.run_sprite_generated(engine.canvas)
             save!
           else
-            options[:compass][:logger].record(:unchanged, relativize(filename))
+            log :unchanged, filename
           end
         end
         
         def cleanup_old_sprites
           Dir[File.join(Compass.configuration.images_path, "#{path}-*.png")].each do |file|
-            options[:compass][:logger].record(:remove, relativize(file))
+            log :remove, file
             FileUtils.rm file
+            Compass.configuration.run_sprite_removed(file)
           end
         end
         
         # Does this sprite need to be generated
         def generation_required?
-          !File.exists?(filename) || outdated?
+          !File.exists?(filename) || outdated? ||  options[:force]
         end
 
         # Returns the uniqueness hash for this sprite object
@@ -97,7 +98,7 @@ module Compass
         def save!
           FileUtils.mkdir_p(File.dirname(filename))
           saved = engine.save(filename)
-          options[:compass][:logger].record(:create, relativize(filename))
+          log :create, filename
           Compass.configuration.run_sprite_saved(filename)
           saved
         end
@@ -125,6 +126,11 @@ module Compass
           [width, height]
         end
 
+        def log(action, filename, *extra)
+          if options[:compass] && options[:compass][:logger] && !options[:quiet]
+            options[:compass][:logger].record(action, relativize(filename), *extra)
+          end
+        end
       end
     end
   end
diff --git a/test/fixtures/stylesheets/envtest/config.rb b/test/fixtures/stylesheets/envtest/config.rb
new file mode 100644
index 00000000..6fff7da1
--- /dev/null
+++ b/test/fixtures/stylesheets/envtest/config.rb
@@ -0,0 +1,9 @@
+# Require any additional compass plugins here.
+project_type = :stand_alone
+css_dir = "tmp"
+sass_dir = "sass"
+images_dir = "images"
+output_style = :nested
+line_comments = false
+
+disable_warnings = true
diff --git a/test/fixtures/stylesheets/envtest/css/env.css b/test/fixtures/stylesheets/envtest/css/env.css
new file mode 100644
index 00000000..1c08a273
--- /dev/null
+++ b/test/fixtures/stylesheets/envtest/css/env.css
@@ -0,0 +1,2 @@
+.env {
+  env: <%= options[:environment] %>; }
diff --git a/test/fixtures/stylesheets/envtest/sass/env.scss b/test/fixtures/stylesheets/envtest/sass/env.scss
new file mode 100644
index 00000000..e88f6fbe
--- /dev/null
+++ b/test/fixtures/stylesheets/envtest/sass/env.scss
@@ -0,0 +1,3 @@
+.env {
+  env: compass-env();  
+}
diff --git a/test/integrations/compass_test.rb b/test/integrations/compass_test.rb
index 61ad91c2..b06f1283 100644
--- a/test/integrations/compass_test.rb
+++ b/test/integrations/compass_test.rb
@@ -73,6 +73,28 @@ class CompassTest < Test::Unit::TestCase
     end
   end
 
+  def test_env_in_development
+    within_project('envtest', lambda {|c| c.environment = :development }) do |proj|
+      each_css_file(proj.css_path) do |css_file|
+        assert_no_errors css_file, 'envtest'
+      end
+      each_sass_file do |sass_file|
+        assert_renders_correctly sass_file, :ignore_charset => true, :environment => "development"
+      end
+    end
+  end
+
+  def test_env_in_production
+    within_project('envtest', lambda {|c| c.environment = :production }) do |proj|
+      each_css_file(proj.css_path) do |css_file|
+        assert_no_errors css_file, 'envtest'
+      end
+      each_sass_file do |sass_file|
+        assert_renders_correctly sass_file, :ignore_charset => true, :environment => "production"
+      end
+    end
+  end
+
   def test_busted_image_urls
     within_project('busted_image_urls') do |proj|
       each_css_file(proj.css_path) do |css_file|
@@ -150,6 +172,7 @@ private
 
     if Compass.configuration.sass_path && File.exists?(Compass.configuration.sass_path)
       compiler = Compass::Compiler.new *args
+      compiler.clean!
       compiler.run
     end
     yield Compass.configuration if block_given?