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.Server/Models/Subscription.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Security;
+
+namespace WindowsPhone.Recipes.Push.Server.Models
+{
+    /// <summary>
+    /// Represents user subscription.
+    /// </summary>
+    public class Subscription
+    {
+        /// <summary>
+        /// Gets the user name.
+        /// </summary>
+        public string UserName { get; private set; }
+
+        /// <summary>
+        /// Gets the notification channel uri.
+        /// </summary>
+        public Uri ChannelUri { get; private set; }
+
+        /// <summary>
+        /// Initialize a new instance of this type.
+        /// </summary>
+        public Subscription(string userName, Uri channelUri)
+        {
+            UserName = userName;
+            ChannelUri = channelUri;
+        }
+
+        /// <summary>
+        /// Initialize a new instance of this type.
+        /// </summary>
+        public Subscription(string userName, string channelUri)
+            : this (userName, new Uri(channelUri, UriKind.Absolute))
+        {
+        }        
+    }
+}