diff --git a/lib/pry/command_context.rb b/lib/pry/command_context.rb
index d69a21cd..7807a1fc 100644
--- a/lib/pry/command_context.rb
+++ b/lib/pry/command_context.rb
@@ -11,8 +11,9 @@ class Pry
     attr_accessor :command_set
     attr_accessor :command_processor
 
-    def run(name, *args)
-      command_set.run_command(self, name, *args)
+    def run(command_string, *args)
+      complete_string = "#{command_string} #{args.join(" ")}"
+      command_processor.process_commands(complete_string, eval_string, target)
     end
 
     def commands
diff --git a/lib/pry/command_set.rb b/lib/pry/command_set.rb
index 710384f7..7e7a2c95 100644
--- a/lib/pry/command_set.rb
+++ b/lib/pry/command_set.rb
@@ -112,8 +112,8 @@ class Pry
         gems_not_installed = gems_needed.select { |g| !gem_installed?(g) }
 
         options[:stub_info] = proc do
-          output.puts "\n#{name} requires the following gems to be installed: #{(gems_needed.join(", "))}"
-          output.puts "Command not available due to dependency on gems: `#{gems_not_installed.join(", ")}` not being met."
+          output.puts "\nThe command '#{name}' is unavailable because it requires the following gems to be installed: #{(gems_not_installed.join(", "))}"
+          output.puts "-"
           output.puts "Type `install #{name}` to install the required gems and activate this command."
         end
       end
@@ -257,6 +257,16 @@ class Pry
         next if gem_install_failed
 
         Gem.refresh
+        gems_to_install.each do |g|
+          begin
+            require g
+          rescue LoadError
+            output.puts "Required Gem: `#{g}` installed but not found?!. Aborting command installation."
+            gem_install_failed = true
+          end
+        end
+        next if gem_install_failed
+
         command.options.delete :stub_info
         output.puts "Installation of `#{name}` successful! Type `help #{name}` for information"
       end
diff --git a/lib/pry/config.rb b/lib/pry/config.rb
index f75629ec..bcd9370d 100644
--- a/lib/pry/config.rb
+++ b/lib/pry/config.rb
@@ -70,6 +70,17 @@ class Pry
     # Determines whether plugins should be loaded.
     # @return [Boolean]
     attr_accessor :should_load_plugins
+
+    # Config option for history.
+    # sub-options include hist.file, hist.load, and hist.save
+    # hist.file is the file to save/load history too, e.g
+    # Pry.config.history.file = "~/.pry_history".
+    # hist.load is a boolean that determines whether history will be
+    # loaded from hist.file at session start.
+    # hist.save is a boolean that determines whether history will be
+    # saved to hist.file at session end.
+    # @return [OpenStruct]
+    attr_accessor :history
   end
 end
 
diff --git a/lib/pry/core_extensions.rb b/lib/pry/core_extensions.rb
index 7e1ef63c..1bd294e8 100644
--- a/lib/pry/core_extensions.rb
+++ b/lib/pry/core_extensions.rb
@@ -30,13 +30,13 @@ class Object
       begin
         instance_eval %{
           def __binding_impl__
-            binding
+            Kernel.binding
           end
         }
       rescue TypeError
         self.class.class_eval %{
           def __binding_impl__
-            binding
+            Kernel.binding
           end
         }
       end
diff --git a/lib/pry/default_commands/basic.rb b/lib/pry/default_commands/basic.rb
index eda53a7f..124a75d1 100644
--- a/lib/pry/default_commands/basic.rb
+++ b/lib/pry/default_commands/basic.rb
@@ -10,9 +10,9 @@ class Pry
       command "simple-prompt", "Toggle the simple prompt." do
         case Pry.active_instance.prompt
         when Pry::SIMPLE_PROMPT
-          Pry.active_instance.prompt = Pry::DEFAULT_PROMPT
+          Pry.active_instance.pop_prompt
         else
-          Pry.active_instance.prompt = Pry::SIMPLE_PROMPT
+          Pry.active_instance.push_prompt Pry::SIMPLE_PROMPT
         end
       end
 
diff --git a/lib/pry/default_commands/context.rb b/lib/pry/default_commands/context.rb
index 3ecf8345..618c60cb 100644
--- a/lib/pry/default_commands/context.rb
+++ b/lib/pry/default_commands/context.rb
@@ -20,7 +20,7 @@ class Pry
           TOPLEVEL_BINDING.pry
           next
         else
-          Pry.start target.eval(opts[:arg_string])
+          Pry.start target.eval(arg_string)
         end
       end
 
@@ -54,16 +54,14 @@ class Pry
       end
 
       command "exit", "End the current Pry session. Accepts optional return value. Aliases: quit, back" do
-        str = remove_first_word(opts[:val])
-        throw(:breakout, [opts[:nesting].level, target.eval(str)])
+        throw(:breakout, [opts[:nesting].level, target.eval(arg_string)])
       end
 
       alias_command "quit", "exit", ""
       alias_command "back", "exit", ""
 
       command "exit-all", "End all nested Pry sessions. Accepts optional return value. Aliases: !!@" do
-        str = remove_first_word(opts[:val])
-        throw(:breakout, [0, target.eval(str)])
+        throw(:breakout, [0, target.eval(arg_string)])
       end
 
       alias_command "!!@", "exit-all", ""
@@ -76,7 +74,7 @@ class Pry
       alias_command "!!!", "exit-program", ""
 
       command "!pry", "Start a Pry session on current self; this even works mid-expression." do
-        Pry.start(target)
+        target.pry
       end
 
       command "whereami", "Show the code context for the session. (whereami <n> shows <n> extra lines of code around the invocation line. Default: 5)" do |num|
diff --git a/lib/pry/default_commands/input.rb b/lib/pry/default_commands/input.rb
index 89ad3042..b4896cdf 100644
--- a/lib/pry/default_commands/input.rb
+++ b/lib/pry/default_commands/input.rb
@@ -62,6 +62,14 @@ class Pry
             end
           end
 
+          opt.on :s, :show, 'Show the history corresponding to the history line (or range of lines).', true, :as => Range do |range|
+            unless opt.grep?
+              start_line = range.is_a?(Range) ? range.first : range
+              lines = text.with_line_numbers Array(history[range]).join("\n"), start_line
+              stagger_output lines
+            end
+          end
+
           opt.on :e, :exclude, 'Exclude pry commands from the history.' do
             unless opt.grep?
               history.map!.with_index do |element, index|
diff --git a/lib/pry/extended_commands/experimental.rb b/lib/pry/extended_commands/experimental.rb
index 215a48d3..aabe0bc2 100644
--- a/lib/pry/extended_commands/experimental.rb
+++ b/lib/pry/extended_commands/experimental.rb
@@ -4,14 +4,14 @@ class Pry
     Experimental = Pry::CommandSet.new do
 
 
-      command /rue-(\d)/, "Experimental amend-line, where the N in rue-N represents line to replace", :interpolate => false do |replacement_line|
-        replacement_line = "" if !replacement_line
-        input_array = opts[:eval_string].each_line.to_a
-        line_number = opts[:captures].first.to_i
-        input_array[line_number] = opts[:arg_string] + "\n"
-        opts[:eval_string].replace input_array.join
-      end
+      command "reload-method", "Reload the source specifically for a method", :requires_gem => "method_reload" do |meth_name|
+        if (meth = get_method_object(meth_name, target, {})).nil?
+          output.puts "Invalid method name: #{meth_name}."
+          next
+        end
 
+        meth.reload
+      end
 
       command "play-string", "Play a string as input" do
         Pry.active_instance.input = StringIO.new(opts[:arg_string])
diff --git a/lib/pry/helpers/base_helpers.rb b/lib/pry/helpers/base_helpers.rb
index bcb818f2..67e87da8 100644
--- a/lib/pry/helpers/base_helpers.rb
+++ b/lib/pry/helpers/base_helpers.rb
@@ -14,10 +14,6 @@ class Pry
         end
       end
 
-      def remove_first_word(text)
-        text.split.drop(1).join(' ')
-      end
-
       def find_command(name)
         command_match = commands.find { |_, command| command.options[:listing] == name }
 
@@ -49,8 +45,10 @@ class Pry
         gems_needed = Array(options[:requires_gem])
         gems_not_installed = gems_needed.select { |g| !gem_installed?(g) }
         proc do
-          output.puts "\n#{name} requires the following gems to be installed: #{(gems_needed.join(", "))}"
+          output.puts "\nThe command '#{name}' requires the following gems to be installed: #{(gems_needed.join(", "))}"
+          output.puts "-"
           output.puts "Command not available due to dependency on gems: `#{gems_not_installed.join(", ")}` not being met."
+          output.puts "-"
           output.puts "Type `install #{name}` to install the required gems and activate this command."
         end
       end
diff --git a/lib/pry/helpers/command_helpers.rb b/lib/pry/helpers/command_helpers.rb
index 9298c6d6..d42dc3fa 100644
--- a/lib/pry/helpers/command_helpers.rb
+++ b/lib/pry/helpers/command_helpers.rb
@@ -48,11 +48,6 @@ class Pry
         end
       end
 
-      def remove_first_word(text)
-        text.split.drop(1).join(' ')
-      end
-
-
       def code_and_code_type_for(meth)
         case code_type = code_type_for(meth)
         when nil
diff --git a/lib/pry/pry_class.rb b/lib/pry/pry_class.rb
index 73ac38c3..a836e005 100644
--- a/lib/pry/pry_class.rb
+++ b/lib/pry/pry_class.rb
@@ -96,8 +96,8 @@ class Pry
       # we only want them loaded once per entire Pry lifetime, not
       # multiple times per each new session (i.e in debugging)
       load_rc if Pry.config.should_load_rc
-      load_history if Pry.config.history.load
       load_plugins if Pry.config.should_load_plugins
+      load_history if Pry.config.history.load
 
       @initial_session = false
     end
diff --git a/lib/pry/pry_instance.rb b/lib/pry/pry_instance.rb
index 6177d1a0..e724c497 100644
--- a/lib/pry/pry_instance.rb
+++ b/lib/pry/pry_instance.rb
@@ -1,6 +1,5 @@
 require "pry/command_processor.rb"
 
-# @attr prompt
 class Pry
 
   attr_accessor :input
@@ -81,7 +80,7 @@ class Pry
     self.class.nesting = v
   end
 
-  # @return [Boolean] Whether current session is the top-level session.
+  # @return [Boolean] Whether top-level session has ended.
   def finished_top_level_session?
     nesting.empty?
   end
@@ -243,7 +242,7 @@ class Pry
     eval_string
   end
 
-  # FIXME should delete this method? it's exposing an implementation detail!
+  # Output the result or pass to an exception handler (if result is an exception).
   def show_result(result)
     if last_result_is_exception?
       exception_handler.call output, result
@@ -364,7 +363,8 @@ class Pry
 
   # Save readline history to a file.
   def save_history
-    File.open Pry.config.history.file, 'w' do |f|
+    history_file = File.expand_path(Pry.config.history.file)
+    File.open(history_file, 'w') do |f|
       f.write Readline::HISTORY.to_a.join("\n")
     end
   end
diff --git a/test/test_default_commands.rb b/test/test_default_commands.rb
index 5a32265a..7530b6f9 100644
--- a/test/test_default_commands.rb
+++ b/test/test_default_commands.rb
@@ -98,6 +98,23 @@ describe "Pry::Commands" do
       str_output.string.each_line.count.should == 4
       str_output.string.should =~ /a\n\d+:.*b\n\d+:.*c/
     end
+
+    # strangeness in this test is due to bug in Readline::HISTORY not
+    # always registering first line of input
+    it 'should show lines between lines A and B with the --show switch' do
+      push_first_hist_line.call(@hist, "0")
+      ("a".."z").each do |v|
+        @hist.push v
+      end
+
+      str_output = StringIO.new
+      redirect_pry_io(InputTester.new("hist --show 1..4", "exit-all"), str_output) do
+        pry
+      end
+
+      str_output.string.each_line.count.should == 4
+      str_output.string.should =~ /b\n\d+:.*c\n\d+:.*d/
+    end
   end
 
   describe "show-method" do
diff --git a/test/test_pry.rb b/test/test_pry.rb
index db689332..ecffa5a3 100644
--- a/test/test_pry.rb
+++ b/test/test_pry.rb
@@ -297,6 +297,11 @@ describe Pry do
           Pry.binding_for(_main_.call).should == TOPLEVEL_BINDING
           Pry.binding_for(_main_.call).should == Pry.binding_for(_main_.call)
         end
+
+        it 'should return a binding with the right self for procs' do
+          proc = Proc.new {}
+          Pry.binding_for(proc).eval("self").should.equal? proc
+        end
       end