So first we'll try the embed option. For Google's explanation on this see: http://code.google.com/apis/wave/embed/index.html
Update: Strike that, just add blog-bot@appspot.com to your contacts and then add it to the wave you want to embed. It gives the embed code automatically.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Wave Embed API Example: Simple Wave</title>
<script src="http://wave-api.appspot.com/public/embed.js" type="text/javascript"></script>
<script type="text/javascript">
function initialize() {
var wavePanel = new WavePanel('http://wave.google.com/a/wavesandbox.com/');
wavePanel.loadWave('wavesandbox.com!w+waveID');
wavePanel.init(document.getElementById('waveframe'));
}
</script>
</head>
<body onload="initialize()">
<div id="waveframe" style="width: 500px; height: 100%"></div>
</body>
</html>
<div style="width: 450px; height: 200px;" id="mywaveframe"></div>
<script src="http://wave-api.appspot.com/public/embed.js" type="text/javascript"></script>
<script type="text/javascript">
var wavePanel = new WavePanel('http://wave.google.com/wave/');
wavePanel.setUIConfig('white', 'black', 'Verdana', '10px');
wavePanel.loadWave('googlewave.com!w+RhSPBtyUB');
wavePanel.init(document.getElementById('mywaveframe'));
</script>
<div id="wave" style="width: 560px; height: 420px"></div>
<script
type="text/javascript"
src="http://wave-api.appspot.com/public/embed.js">
</script>
<script type="text/javascript">
var wave =
new WavePanel('https://wave.google.com/wave/');
wave.setUIConfig('white', 'black', 'Arial', '13px');
wave.loadWave('googlewave.com!w+z9YD5Q16H');
wave.init(document.getElementById('wave'));
</script>