Index: app/views/common/feed.atom.rxml
===================================================================
--- app/views/common/feed.atom.rxml	(revision 1583)
+++ app/views/common/feed.atom.rxml	(working copy)
@@ -20,7 +20,8 @@
         xml.email(author.mail) if author.respond_to?(:mail) && !author.mail.blank?
       end if author
       xml.content "type" => "html" do
-        xml.text! textilizable(item.event_description)
+        xml.text! author + textilizable(item.event_description) if author.is_a?(String)
+        xml.text! author.name(:username) + textilizable(item.event_description) if author.is_a?(User)
       end
     end
   end