how to write a georss that can be used for "google.maps.KmlLayer"

Question

1.the atom is :

<?xml version="1.0" encoding="utf-8"?>

<feed xmlns="http://www.w3.org/2005/Atom"&gt;

    <title>Example Feed</title>
    <subtitle>A subtitle.</subtitle>
    <link href="http://example.org/feed/" rel="self" />
    <link href="http://example.org/" />
    <id>urn:uuid:60a76c80-d399-11d9-b91C-0003939e0af6</id>
    <updated>2003-12-13T18:30:02Z</updated>
    <author>
        <name>John Doe</name>
        <email>[email protected]</email>
    </author>

    <entry>
        <title>Atom-Powered Robots Run Amok</title>
        <link href="http://example.org/2003/12/13/atom03" />
        <link rel="alternate" type="text/html" href="http://example.org/2003/12/13/atom03.html"/&gt;
        <link rel="edit" href="http://example.org/2003/12/13/atom03/edit"/&gt;
        <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
        <updated>2003-12-13T18:30:02Z</updated>
        <summary>Some text.</summary>
    </entry>

</feed>

2.the georss is :

< georss:point>45.256 -71.92< /georss:point>

3.the google.maps.KmlLayer is

var myLatlng = new google.maps.LatLng(49.496675,-102.65625);
var myOptions = {
  zoom: 4,
  center: myLatlng,
  mapTypeId: google.maps.MapTypeId.ROADMAP
}

var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

var georssLayer = new google.maps.KmlLayer('http://api.flickr.com/services/feeds/geo/?g=322338@N20〈=en-us&format=feed-georss');
georssLayer.setMap(map);

so how to create a useful georss that contains 1 and 2 for 3 .

thanks