diff --git a/Library/Homebrew/bottles.rb b/Library/Homebrew/bottles.rb
index 88cfc58309..d474a6f65d 100644
--- a/Library/Homebrew/bottles.rb
+++ b/Library/Homebrew/bottles.rb
@@ -2,22 +2,25 @@ require 'tab'
 require 'macos'
 require 'extend/ARGV'
 
-def bottle_filename f, bottle_version=nil
+def bottle_filename f, bottle_revision=nil
   name = f.name.downcase
   version = f.stable.version
-  bottle_version ||= f.bottle.revision.to_i
-  "#{name}-#{version}#{bottle_native_suffix(bottle_version)}"
+  bottle_revision ||= f.bottle.revision.to_i
+  "#{name}-#{version}#{bottle_native_suffix(bottle_revision)}"
 end
 
 def install_bottle? f
   return true if ARGV.include? '--install-bottle' and MacOS.bottles_supported?(true)
   return true if f.downloader and defined? f.downloader.local_bottle_path \
     and f.downloader.local_bottle_path
-  not ARGV.build_from_source? \
-    and MacOS.bottles_supported? \
-    and f.pour_bottle? \
-    and f.build.used_options.empty? \
-    and bottle_current?(f)
+
+  return false if ARGV.build_from_source?
+  return false unless MacOS.bottles_supported?
+  return false unless f.pour_bottle?
+  return false unless f.build.used_options.empty?
+  return false unless bottle_current?(f)
+
+  true
 end
 
 def built_as_bottle? f
@@ -45,18 +48,18 @@ def bottle_file_outdated? f, file
   bottle_ext && bottle_url_ext && bottle_ext != bottle_url_ext
 end
 
-def bottle_new_version f
+def bottle_new_revision f
   return 0 unless bottle_current? f
   f.bottle.revision + 1
 end
 
-def bottle_native_suffix version=nil
-  ".#{MacOS.cat}#{bottle_suffix(version)}"
+def bottle_native_suffix revision=nil
+  ".#{MacOS.cat}#{bottle_suffix(revision)}"
 end
 
-def bottle_suffix version=nil
-  version = version.to_i > 0 ? ".#{version}" : ""
-  ".bottle#{version}.tar.gz"
+def bottle_suffix revision=nil
+  revision = revision.to_i > 0 ? ".#{revision}" : ""
+  ".bottle#{revision}.tar.gz"
 end
 
 def bottle_native_regex
diff --git a/Library/Homebrew/cmd/bottle.rb b/Library/Homebrew/cmd/bottle.rb
index 9f2c597678..87b380aa6c 100644
--- a/Library/Homebrew/cmd/bottle.rb
+++ b/Library/Homebrew/cmd/bottle.rb
@@ -13,19 +13,21 @@ module Homebrew extend self
       return ofail "Formula not installed with '--build-bottle': #{f.name}"
     end
 
-    directory = Pathname.pwd
-    bottle_version = bottle_new_version f
-    filename = bottle_filename f, bottle_version
+    bottle_revision = bottle_new_revision f
+    filename = bottle_filename f, bottle_revision
+    bottle_path = Pathname.pwd/filename
+    sha1 = nil
 
     HOMEBREW_CELLAR.cd do
       ohai "Bottling #{f.name} #{f.version}..."
       # Use gzip, faster to compress than bzip2, faster to uncompress than bzip2
       # or an uncompressed tarball (and more bandwidth friendly).
-      safe_system 'tar', 'czf', directory/filename, "#{f.name}/#{f.version}"
+      safe_system 'tar', 'czf', bottle_path, "#{f.name}/#{f.version}"
+      sha1 = bottle_path.sha1
       puts "./#{filename}"
       puts "bottle do"
-      puts "  version #{bottle_version}" if bottle_version > 0
-      puts "  sha1 '#{(directory/filename).sha1}' => :#{MacOS.cat}"
+      puts "  revision #{bottle_revision}" if bottle_revision > 0
+      puts "  sha1 '#{sha1}' => :#{MacOS.cat}"
       puts "end"
     end
   end
diff --git a/Library/Homebrew/formula_support.rb b/Library/Homebrew/formula_support.rb
index 10be6ff635..2f3b10322b 100644
--- a/Library/Homebrew/formula_support.rb
+++ b/Library/Homebrew/formula_support.rb
@@ -83,7 +83,7 @@ class Bottle < SoftwareSpec
   # TODO: Can be removed when all bottles migrated to underscored cat symbols.
   attr_reader :cat_without_underscores
 
-  def initialize url=nil, version=nil
+  def initialize
     super
     @revision = 0
     @cat_without_underscores = false
@@ -98,8 +98,6 @@ class Bottle < SoftwareSpec
         case val
         when nil
           @#{cksum}[MacOS.cat]
-        when String
-          @#{cksum}[:lion] = Checksum.new(:#{cksum}, val)
         when Hash
           key, value = val.shift
           @#{cksum}[value] = Checksum.new(:#{cksum}, key)
@@ -115,12 +113,13 @@ class Bottle < SoftwareSpec
     }
   end
 
-  def url val=nil
-    val.nil? ? @url : @url = val
+  def revision val=nil
+    val.nil? ? @revision : @revision = val
   end
 
-  # Used in the bottle DSL to set @revision, but acts as an
+  # Used in the old bottle DSL to set @revision, but acts as an
   # as accessor for @version to preserve the interface
+  # TODO: Can be removed when no bottles are using `version` any more.
   def version val=nil
     if val.nil?
       return @version ||= Version.parse(@url)
diff --git a/Library/Homebrew/test/testball.rb b/Library/Homebrew/test/testball.rb
index cb94fd40be..f01d14a831 100644
--- a/Library/Homebrew/test/testball.rb
+++ b/Library/Homebrew/test/testball.rb
@@ -131,8 +131,9 @@ class ExplicitVersionSpecTestBall < Formula
 
   bottle do
     version '1'
-    url 'file:///foo.com/test-0.3.lion.bottle.tar.gz'
-    sha1 'baadf00dbaadf00dbaadf00dbaadf00dbaadf00d'
+    sha1 'deadbeefdeadbeefdeadbeefdeadbeefdeadbeef' => :snow_leopard
+    sha1 'baadf00dbaadf00dbaadf00dbaadf00dbaadf00d' => :lion
+    sha1 '8badf00d8badf00d8badf00d8badf00d8badf00d' => :mountain_lion
   end
 
   def initialize name=nil