README.md in bubble-wrap-0.4.0 vs README.md in bubble-wrap-1.0.0.pre

@@ -1,10 +1,11 @@
 # BubbleWrap for RubyMotion
 
 A collection of (tested) helpers and wrappers used to wrap CocoaTouch code and provide more Ruby like APIs.
 
 [BubbleWrap website](http://bubblewrap.io)
+[BubbleWrap mailing list](https://groups.google.com/forum/#!forum/bubblewrap)
 
 ## Installation
 
 ```ruby
 gem install bubble-wrap
@@ -41,11 +42,11 @@
 2. Now, you can use BubbleWrap extension in your app:
 
 ```ruby
 class AppDelegate
   def application(application, didFinishLaunchingWithOptions:launchOptions)
-    puts "#{App.name} (#{documents_path})"
+    puts "#{App.name} (#{App.documents_path})"
     true
   end
 end
 ```
 
@@ -110,13 +111,13 @@
 # false
 > Device.screen.width
 # 320
 > Device.screen.height
 # 480
-> Device.screen.widthForOrientation(:landscape_left)
+> Device.screen.width_for_orientation(:landscape_left)
 # 480
-> Device.screen.heightForOrientation(:landscape_left)
+> Device.screen.height_for_orientation(:landscape_left)
 # 320
 ```
 
 ### Gestures
 
@@ -161,11 +162,11 @@
 def viewWillAppear(animated)
   @foreground_observer = notification_center.observe UIApplicationWillEnterForegroundNotification do |notification|
     loadAndRefresh
   end
   
-  @reload_observer notification_center.observe ReloadNotification do |notification|
+  @reload_observer = notification_center.observe ReloadNotification do |notification|
     loadAndRefresh
   end
 end
 
 def viewWillDisappear(animated)
@@ -193,9 +194,36 @@
 > App::Persistence['channels'] # application specific persistence storage
 # ['NBC', 'ABC', 'Fox', 'CBS', 'PBS']
 > App::Persistence['channels'] = ['TF1', 'France 2', 'France 3']
 # ['TF1', 'France 2', 'France 3']
 ```
+
+### Observers
+**Since: > version 0.4**
+
+You can observe for object's changes and trigger blocks:
+
+``` ruby
+class ExampleViewController < UIViewController
+  include BW::KVO
+
+  def viewDidLoad
+    @label = "Initial state"
+
+    observe(@label, "text") do |old_value, new_value|
+      puts "Hello from viewDidLoad!"
+    end
+  end
+
+  def viewDidAppear(animated)
+    observe(@label, "text") do |old_value, new_value|
+      puts "Hello from viewDidAppear!"
+    end
+  end
+
+end
+```
+
 
 ### String
 
 The Ruby `String` class was extended to add `#camelize` and
 `#underscore` methods.