push notification helper library

http://windowsteamblog.com/windows_phone/b/wpdev/archive/2011/01/14/windows-push-notification-server-side-helper-library.aspx
http://create.msdn.com/en-us/education/catalog/article/pnhelp-wp7

main/Libs/PushRecipe_WP7_SL/Source/WindowsPhone.Recipes.Push.Messasges/DeviceConnectionStatus.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace WindowsPhone.Recipes.Push.Messasges
+{
+    /// <summary>
+    /// Windows Phone Device connection status.
+    /// </summary>
+    public enum DeviceConnectionStatus
+    {
+        /// <value>The request is not applicable.</value>
+        NotApplicable,
+
+        /// <value>The device is connected.</value>
+        Connected,
+
+        /// <value>The device is temporarily disconnected.</value>
+        TempDisconnected,
+
+        /// <value>The device is in an inactive state.</value>
+        Inactive
+    }
+}