Here's the code:
<?xml version='1.0' encoding='UTF-8' ?>
<Module>
<ModulePrefs
title='Application Title'
title_url='http://www.iwiddit.com/'
description='This is my app.'
author=''
author_email=''
screenshot=''
thumbnail=''
directory_title=''
author_affiliation=''
author_location=''
author_photo=''
author_aboutme=''
author_quote=''
author_link=''
show_stats=''
show_in_directory=''
width=''
height=''
category=''
category2=''
singleton=''
scaling=''
scrolling=''
>
<Require feature='opensocial-0.7' />
<Optional feature='setprefs' /> <!-- gadgets.Prefs -->
<Optional feature='dynamic-height' /> <!-- gadgets.window -->
<Optional feature='settitle' /> <!-- gadgets.window.setTitle -->
<Optional feature='skins' /> <!-- gadgets.skins -->
<Optional feature='views' /> <!-- gadgets.views -->
<Optional feature='rpc' /> <!-- gadgets.rpc -->
<Optional feature='flash' /> <!-- gadgets.flash -->
<Optional feature='minimessages' /> <!-- gadgets.MiniMessage -->
<Optional feature='tabs' /> <!-- gadgets.tabs -->
</ModulePrefs>
<Content type='html' view='profile'>
<![CDATA[
<style type='text/css'>
/* profile style here */
</style>
<!-- profile html here... -->
<p>Profile Data</p>
<script type='text/javascript'>
// profile code goes here
</script>
]]>
</Content>
<Content type='html' view='canvas'>
<![CDATA[
<!-- Note: You don\'t need to specify separate content for canvas vs profile unless you want to. You can also generate the contents programatically. See the gadgets namespace description. -->
<style type='text/css'>
/* canvas style here */
</style>
<!-- canvas html here... -->
<p>Canvas Data</p>
<script type='text/javascript'>
// canvas code goes here
</script>
]]>
</Content>
</Module>