--- a/spec/Overview-WebCryptoAPI.xml	Mon Dec 03 17:17:20 2012 -0800
+++ b/spec/Overview-WebCryptoAPI.xml	Mon Dec 03 17:36:13 2012 -0800
@@ -17,6 +17,11 @@
     <title>Web Cryptography API</title>
 
     <link rel='stylesheet' href='webcrypto.css' type='text/css'/>
+    <style type="text/css">
+      .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
+      .XXX > :first-child { margin-top: 0; }
+      p .XXX { line-height: 3em; }
+    </style>
     <script src='section-links.js' type='application/ecmascript'/>
     <script src='dfn.js' type='application/ecmascript'/>
     <!--[if IE]>
@@ -72,6 +77,22 @@
     <div class='section'>
       <h2>Status of this Document</h2>
       <p>
+        <em>
+          This section describes the status of this document at the time of its publication.
+          Other documents may supersede this document. A list of current W3C publications and
+          the most recently formally published revision of this technical report can be found
+          in the <a href="http://www.w3.org/TR/">W3C technical reports index</a> at
+          http://www.w3.org/TR/.
+        </em>
+      </p>
+      <p class="XXX">
+        Implementors should be aware that this specification is not stable.
+        <strong>Implementors who are not taking part in the discussions are likely to find the
+        specification changing out from under them in incompatible ways.</strong> Vendors interested
+        in implementing this specification before it eventually reaches the Candidate Recommendation
+        stage should join the mailing lists that follow and take part in the discussions.
+      </p>
+      <p>
         The Web Cryptography Working Group invites discussion and feedback on this draft document by
         web developers, companies, standardization bodies or forums interested in deployment of secure
         services with web applications. Specifically, Web Cryptography Working Group is looking for

--- a/spec/Overview.html	Mon Dec 03 17:17:20 2012 -0800
+++ b/spec/Overview.html	Mon Dec 03 17:36:13 2012 -0800
@@ -13,6 +13,11 @@
     <title>Web Cryptography API</title>
 
     <link rel="stylesheet" href="webcrypto.css" type="text/css" />
+    <style type="text/css">
+      .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
+      .XXX &gt; :first-child { margin-top: 0; }
+      p .XXX { line-height: 3em; }
+    </style>
     <script src="section-links.js" type="application/ecmascript"></script>
     <script src="dfn.js" type="application/ecmascript"></script>
     <!--[if IE]>
@@ -50,6 +55,22 @@
     <div class="section">
       <h2>Status of this Document</h2>
       <p>
+        <em>
+          This section describes the status of this document at the time of its publication.
+          Other documents may supersede this document. A list of current W3C publications and
+          the most recently formally published revision of this technical report can be found
+          in the <a href="http://www.w3.org/TR/">W3C technical reports index</a> at
+          http://www.w3.org/TR/.
+        </em>
+      </p>
+      <p class="XXX">
+        Implementors should be aware that this specification is not stable.
+        <strong>Implementors who are not taking part in the discussions are likely to find the
+        specification changing out from under them in incompatible ways.</strong> Vendors interested
+        in implementing this specification before it eventually reaches the Candidate Recommendation
+        stage should join the mailing lists that follow and take part in the discussions.
+      </p>
+      <p>
         The Web Cryptography Working Group invites discussion and feedback on this draft document by
         web developers, companies, standardization bodies or forums interested in deployment of secure
         services with web applications. Specifically, Web Cryptography Working Group is looking for