diff --git a/app/controllers/todos_controller.rb b/app/controllers/todos_controller.rb
index 12dbba66..058dfd5c 100644
--- a/app/controllers/todos_controller.rb
+++ b/app/controllers/todos_controller.rb
@@ -26,7 +26,7 @@ class TodosController < ApplicationController
     respond_to do |format|
       format.html  &render_todos_html
       format.m     &render_todos_mobile
-      format.xml   { render :xml => @todos.to_xml( :except => :user_id ) }
+      format.xml   { render :xml => @todos.to_xml( *to_xml_params ) }
       format.rss   &render_rss_feed
       format.atom  &render_atom_feed
       format.text  &render_text_feed
@@ -230,7 +230,7 @@ class TodosController < ApplicationController
         @return_path=cookies[:mobile_url] ? cookies[:mobile_url] : mobile_path
         render :action => 'show'
       end
-      format.xml { render :xml => @todo.to_xml( :root => 'todo', :except => :user_id, :include => [:tags] ) }
+      format.xml { render :xml => @todo.to_xml( *to_xml_params ) }
     end
   end
 
@@ -305,7 +305,7 @@ class TodosController < ApplicationController
         end
         render
       end
-      format.xml { render :xml => @todo.to_xml( :except => :user_id ) }
+      format.xml { render :xml => @todo.to_xml( *to_xml_params ) }
       format.html do
         if @saved
           # TODO: I think this will work, but can't figure out how to test it
@@ -325,7 +325,7 @@ class TodosController < ApplicationController
     @saved = true # cannot determine error
     respond_to do |format|
       format.js
-      format.xml { render :xml => @todo.to_xml( :except => :user_id ) }
+      format.xml { render :xml => @todo.to_xml( *to_xml_params ) }
       format.html { redirect_to request.referrer}
     end
   end
@@ -345,7 +345,7 @@ class TodosController < ApplicationController
 
     respond_to do |format|
       format.js  { render :action => :update }
-      format.xml { render :xml => @todo.to_xml( :except => :user_id ) }
+      format.xml { render :xml => @todo.to_xml( *to_xml_params ) }
     end
   end
 
@@ -385,7 +385,7 @@ class TodosController < ApplicationController
         @status_message = t('todos.added_new_project') + ' / ' + @status_message if @new_project_created
         @status_message = t('todos.added_new_context') + ' / ' + @status_message if @new_context_created
       }
-      format.xml { render :xml => @todo.to_xml( :except => :user_id ) }
+      format.xml { render :xml => @todo.to_xml( *to_xml_params ) }
       format.m do
         if @saved
           if cookies[:mobile_url]
@@ -473,6 +473,11 @@ class TodosController < ApplicationController
     @done_this_week = get_done_this_week(completed_todos)
     @done_this_month = get_done_this_month(completed_todos)
     @count = @done_today.size + @done_this_week.size + @done_this_month.size
+
+    respond_to do |format|
+      format.html
+      format.xml { render :xml => completed_todos.to_xml( *to_xml_params ) }
+    end
   end
 
   def all_done
@@ -497,7 +502,7 @@ class TodosController < ApplicationController
     respond_to do |format|
       format.html
       format.m { render :action => 'mobile_list_deferred' }
-      format.xml { render :xml => @not_done_todos.to_xml( :except => :user_id ) }
+      format.xml { render :xml => @not_done_todos.to_xml( *to_xml_params ) }
     end
   end
 
@@ -687,6 +692,19 @@ class TodosController < ApplicationController
         @due_all = current_user.todos.not_completed.are_due.find(:all, :order => "due")
         render :action => 'calendar', :layout => false, :content_type => Mime::ICS
       }
+      format.xml {
+        @due_all = current_user.todos.not_completed.are_due.find(:all, :order => "due")
+        render :xml => @due_all.to_xml( *to_xml_params )
+      }
+    end
+  end
+
+  def list_hidden
+    @hidden = current_user.todos.hidden
+    respond_to do |format|
+      format.xml {
+        render :xml => @hidden.to_xml( *to_xml_params )
+      }
     end
   end
 
@@ -754,6 +772,14 @@ class TodosController < ApplicationController
 
   private
 
+  def to_xml_params
+    if params[:limit_fields] == 'index'
+      return [:only => [:id, :created_at, :updated_at, :completed_at] ]
+    else
+      return [:except => :user_id, :include => [:tags] ]
+    end
+  end
+
   def get_todo_from_params
     # TODO: this was a :append_before but was removed to tune performance per
     # method. Reconsider re-enabling it
diff --git a/app/views/integrations/rest_api.html.erb b/app/views/integrations/rest_api.html.erb
index e4769410..317332ab 100644
--- a/app/views/integrations/rest_api.html.erb
+++ b/app/views/integrations/rest_api.html.erb
@@ -56,6 +56,10 @@
 <ul>
   <li>/todos.xml</li>
   <li>/todos/<code>ID</code>.xml</li>
+  <li>/tickler.xml</li>
+  <li>/done.xml</li>
+  <li>/hidden.xml</li>
+  <li>/calendar.xml</li>
   <li>/contexts.xml</li>
   <li>/contexts/<code>ID</code>.xml</li>
   <li>/contexts/<code>ID</code>/todos.xml</li>
@@ -64,6 +68,17 @@
   <li>/projects/<code>ID</code>/todos.xml</li>
 </ul>
 
+<p>For the todo resources (todos, tickler, done, hidden and calendar) you can limit the returned
+field to <code>ID, created_at, modified_at, completed_at</code> by adding the parameter
+<code>limit_fields</code> and setting it to <code>index</code>. For example:</p>
+
+<pre>
+<code>
+  $ curl -u username:p4ssw0rd -H "Content-Type: text/xml" \
+  <%= home_url %>tickler.xml?limit_fields=index
+</code>
+</pre>
+
 <h2>Writing to the API</h2>
 
 <p>The API provides mechanisms for adding, updating and deleting resources using the HTTP methods <code>PUT</code>, <code>POST</code> and <code>DELETE</code> in combination with the content.</p>
@@ -173,17 +188,17 @@ $ curl -u username:p4ssw0rd -H "Content-Type: text/xml" \
 
 <pre>
 <code>
-$ script/console 
+$ script/console
 Loading development environment (Rails 1.2.4)
 &gt;&gt; class Context &lt; ActiveResource::Base; end
 =&gt; nil
 &gt;&gt; Context.site = "<%= home_url %>"
-=&gt; "<%= home_url %>" 
-&gt;&gt; Context.site.user = "username" 
-=&gt; "username" 
+=&gt; "<%= home_url %>"
+&gt;&gt; Context.site.user = "username"
+=&gt; "username"
 
-&gt;&gt; Context.site.password = CGI.escape "p4ssw0rd" 
-=&gt; "p4ssw0rd" 
+&gt;&gt; Context.site.password = CGI.escape "p4ssw0rd"
+=&gt; "p4ssw0rd"
 &gt;&gt; Context.find :first
 =&gt; #&lt;Context:0x262396c @prefix_options={}, @attributes={...}&gt;
 &gt;&gt; &gt;&gt; Context.find :all
@@ -201,7 +216,7 @@ $ SITE="http://username:p4ssw0rd@<%= request.host_with_port %>" irb \
 
 irb(main):001:0&gt; inbox = Tracks::Context.find :first
 irb(main):002:0&gt; inbox.name
-=&gt; "@inbox" 
+=&gt; "@inbox"
 irb(main):003:0&gt;
 </code>
 </pre>
diff --git a/config/routes.rb b/config/routes.rb
index 830e4f63..1261ed40 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -3,7 +3,7 @@ ActionController::Routing::Routes.draw do |map|
     :member => {:change_password => :get, :update_password => :post,
     :change_auth_type => :get, :update_auth_type => :post, :complete => :get,
     :refresh_token => :post }
-    
+
   map.with_options :controller => :users do |users|
     users.signup 'signup', :action => "new"
   end
@@ -12,11 +12,11 @@ ActionController::Routing::Routes.draw do |map|
     contexts.resources :todos, :name_prefix => "context_"
   end
 
-  map.resources :projects, :collection => {:order => :post, :alphabetize => :post, :actionize => :post, :done => :get}, 
+  map.resources :projects, :collection => {:order => :post, :alphabetize => :post, :actionize => :post, :done => :get},
   :member => {:done_todos => :get, :all_done_todos => :get} do |projects|
     projects.resources :todos, :name_prefix => "project_"
   end
-  
+
   map.resources :notes
 
   map.resources :todos,
@@ -28,7 +28,7 @@ ActionController::Routing::Routes.draw do |map|
     todos.home '', :action => "index"
     todos.tickler 'tickler.:format', :action => "list_deferred"
     todos.mobile_tickler 'tickler.m', :action => "list_deferred", :format => 'm'
-    
+
     # This route works for tags with dots like /todos/tag/version1.5
     # please note that this pattern consumes everything after /todos/tag
     # so /todos/tag/version1.5.xml will result in :name => 'version1.5.xml'
@@ -41,10 +41,13 @@ ActionController::Routing::Routes.draw do |map|
 
     todos.tags 'tags.autocomplete', :action => "tags", :format => 'autocomplete'
     todos.auto_complete_for_predecessor 'auto_complete_for_predecessor', :action => 'auto_complete_for_predecessor'
-    
+
     todos.calendar 'calendar.ics', :action => "calendar", :format => 'ics'
+    todos.calendar 'calendar.xml', :action => "calendar", :format => 'xml'
     todos.calendar 'calendar', :action => "calendar"
-    
+
+    todos.hidden 'hidden.xml', :action => "list_hidden", :format => 'xml'
+
     todos.mobile 'mobile', :action => "index", :format => 'm'
     todos.mobile_abbrev 'm', :action => "index", :format => 'm'
     todos.mobile_abbrev_new 'm/new', :action => "new", :format => 'm'
@@ -74,7 +77,7 @@ ActionController::Routing::Routes.draw do |map|
     fl.mobile_feeds 'feeds.m', :action => 'index', :format => 'm'
     fl.feeds        'feeds',   :action => 'index'
   end
-  
+
   map.with_options :controller => :integrations do |i|
     i.integrations  'integrations', :action => 'index'
     i.rest_api_docs 'integrations/rest_api', :action => "rest_api"
@@ -83,12 +86,12 @@ ActionController::Routing::Routes.draw do |map|
   end
 
   map.preferences 'preferences', :controller => 'preferences', :action => 'index'
-  
+
   map.with_options :controller => :stats do |stats|
     stats.stats 'stats',  :action => 'index'
     stats.done_overview 'done', :action => 'done'
   end
-  
+
   map.search 'search', :controller => 'search', :action => 'index'
   map.data 'data', :controller => 'data', :action => 'index'