stubbed the observable clients

Octokit.Reactive/Clients/IObservableUserKeysClient.cs

@@ -0,0 +1,31 @@
+using System;
+
+namespace Octokit.Reactive
+{
+    /// <summary>
+    /// A client for GitHub's User Keys API.
+    /// </summary>
+    /// <remarks>
+    /// See the <a href="http://developer.github.com/v3/users/keys/">User Keys API documentation</a> for more information.
+    /// </remarks>
+    public interface IObservableUserKeysClient
+    {
+        /// <summary>
+        /// Gets all public keys for the authenticated user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-your-public-keys
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the authenticated user.</returns>
+        IObservable<PublicKey> GetAll();
+
+        /// <summary>
+        /// Gets all verified public keys for a user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-public-keys-for-a-user
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the user.</returns>
+        IObservable<PublicKey> GetAll(string userName);
+    }
+}

Octokit.Reactive/Clients/IObservableUsersClient.cs

@@ -43,5 +43,13 @@ namespace Octokit.Reactive
         /// See the <a href="http://developer.github.com/v3/users/emails/">Emails API documentation</a> for more information.
         ///</remarks>
         IObservableUserEmailsClient Email { get; }
+
+        /// <summary>
+        /// A client for GitHub's User Keys API
+        /// </summary>
+        /// <remarks>
+        /// See the <a href="http://developer.github.com/v3/users/keys/">Keys API documentation</a> for more information.
+        ///</remarks>
+        IObservableUserKeysClient Keys { get; }
     }
 }

Octokit.Reactive/Clients/ObservableUserKeysClient.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Reactive.Linq;
+using System.Reactive.Threading.Tasks;
+
+namespace Octokit.Reactive
+{
+    public class ObservableUserKeysClient : IObservableUserKeysClient
+    {
+        readonly IUserKeysClient _client;
+
+        public ObservableUserKeysClient(IGitHubClient client)
+        {
+            Ensure.ArgumentNotNull(client, "client");
+
+            _client = client.User.Keys;
+        }
+
+        public IObservable<PublicKey> GetAll()
+        {
+            return _client.GetAll().ToObservable().SelectMany(k => k);
+        }
+
+        public IObservable<PublicKey> GetAll(string userName)
+        {
+            return _client.GetAll(userName).ToObservable().SelectMany(k => k);
+        }
+    }
+}

Octokit.Reactive/Clients/ObservableUsersClient.cs

@@ -15,6 +15,7 @@ namespace Octokit.Reactive
 
             Followers = new ObservableFollowersClient(client);
             Email = new ObservableUserEmailsClient(client);
+            Keys = new ObservableUserKeysClient(client);
         }
 
         /// <summary>
@@ -66,5 +67,13 @@ namespace Octokit.Reactive
         /// See the <a href="http://developer.github.com/v3/users/emails/">Emails API documentation</a> for more information.
         ///</remarks>
         public IObservableUserEmailsClient Email { get; private set; }
+
+        /// <summary>
+        /// A client for GitHub's User Keys API
+        /// </summary>
+        /// <remarks>
+        /// See the <a href="http://developer.github.com/v3/users/keys/">Keys API documentation</a> for more information.
+        ///</remarks>
+        public IObservableUserKeysClient Keys { get; private set; }
     }
 }

Octokit.Reactive/Octokit.Reactive.csproj

@@ -76,6 +76,7 @@
     <Compile Include="Clients\IObservableOauthClient.cs" />
     <Compile Include="Clients\IObservableRepositoryCommitsClients.cs" />
     <Compile Include="Clients\IObservableRepositoryDeployKeysClient.cs" />
+    <Compile Include="Clients\IObservableUserKeysClient.cs" />
     <Compile Include="Clients\ObservableRepositoryDeployKeysClient.cs" />
     <Compile Include="Clients\ObservableOauthClient.cs" />
     <Compile Include="Clients\ObservableRepositoryCommentsClient.cs" />
@@ -144,6 +145,7 @@
     <Compile Include="Clients\ObservableTreesClient.cs" />
     <Compile Include="Clients\ObservableFollowersClient.cs" />
     <Compile Include="Clients\ObservableUserEmailsClient.cs" />
+    <Compile Include="Clients\ObservableUserKeysClient.cs" />
     <Compile Include="Clients\ObservableUsersClient.cs" />
     <Compile Include="Clients\IObservableAssigneesClient.cs" />
     <Compile Include="Clients\IObservableNotificationsClient.cs" />

Octokit/Clients/IUserKeysClient.cs

@@ -3,9 +3,30 @@ using System.Threading.Tasks;
 
 namespace Octokit
 {
+    /// <summary>
+    /// A client for GitHub's User Keys API.
+    /// </summary>
+    /// <remarks>
+    /// See the <a href="http://developer.github.com/v3/users/keys/">User Keys API documentation</a> for more information.
+    /// </remarks>
     public interface IUserKeysClient
     {
+        /// <summary>
+        /// Gets all public keys for the authenticated user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-your-public-keys
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the authenticated user.</returns>
         Task<IReadOnlyList<PublicKey>> GetAll();
+
+        /// <summary>
+        /// Gets all verified public keys for a user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-public-keys-for-a-user
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the user.</returns>
         Task<IReadOnlyList<PublicKey>> GetAll(string userName);
     }
 }

Octokit/Clients/UserKeysClient.cs

@@ -3,6 +3,12 @@ using System.Threading.Tasks;
 
 namespace Octokit
 {
+    /// <summary>
+    /// A client for GitHub's User Keys API.
+    /// </summary>
+    /// <remarks>
+    /// See the <a href="http://developer.github.com/v3/users/keys/">User Keys API documentation</a> for more information.
+    /// </remarks>
     public class UserKeysClient : ApiClient, IUserKeysClient
     {
         public UserKeysClient(IApiConnection apiConnection)
@@ -10,11 +16,25 @@ namespace Octokit
         {
         }
 
+        /// <summary>
+        /// Gets all public keys for the authenticated user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-your-public-keys
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the authenticated user.</returns>
         public Task<IReadOnlyList<PublicKey>> GetAll()
         {
             return null;
         }
 
+        /// <summary>
+        /// Gets all verified public keys for a user.
+        /// </summary>
+        /// <remarks>
+        /// https://developer.github.com/v3/users/keys/#list-public-keys-for-a-user
+        /// </remarks>
+        /// <returns>The <see cref="PublicKey"/>s for the user.</returns>
         public Task<IReadOnlyList<PublicKey>> GetAll(string userName)
         {
             return null;