OK, I'm not totally sure what you're after, but hopefully one of these is it!

There's the template used for generating the KML used by account earth mapping:

<apex:page standardController="Account" 
    recordSetvar="notused"
    extensions="LocationsExt"  
    sidebar="false" 
    contenttype="application/vnd.google-earth.kml+xml#sfdc_foundation.kml" ><kml xmlns="http://www.opengis.net/kml/2.2">
<Document><name>force.com</name><Folder>
<name>Account Earth KML</name><open>1</open>  
<Style id='theBalloonStyle'>
<BalloonStyle><text>$[description]</text></BalloonStyle> 
</Style>
<apex:repeat value="{!geolocations}" var="one" >  
<Placemark>
<styleUrl>#theBalloonStyle</styleUrl>
<Style><IconStyle>
<scale>0.8</scale><Icon><href><apex:outputtext value="{!one.geo.Icon_URL__c}" /></href></Icon>
</IconStyle></Style>
<name><apex:outputtext value="{!one.geo.name}"  /></name>
<description><c:balloonTemplates gLocation="{!one}" /></description>
<Point>
<coordinates>{!one.geo.lon__c},{!one.geo.lat__c},0</coordinates></Point>
</Placemark>
</apex:repeat>
</Folder></Document></kml>
</apex:page>

Or maybe this is it: 

<apex:component controller="geoApiKey" >
<apex:attribute name="kml" description="This is the KML map data" type="string" required="true" />
<apex:attribute name="height" description="This is the map height" type="integer" default="500" />
<apex:attribute name="width" description="This is the map width" type="integer" default="950" />

<apex:attribute type="Location" name="look" required="true"
description="Location to look at to begin with" />
<apex:attribute type="string" name="Location" required="true"
description="not used" />

<apex:outputPanel >
<!-- <apex:inputhidden value="{!location}" id="latlon" /> -->
<script src="{!jsapi_script}"></script>
<script src="{!maps_script}" type="text/javascript"></script>

<script> google.load("earth", "1");
google.setOnLoadCallback(init);
var ge = null;

function init() {
google.earth.createInstance('{!$Component.map3d}', initCallback, function (object) { } );
}

function initCallback(object) {
ge = object;
ge.getWindow().setVisibility(true);

var p = ge.parseKml( "<apex:outputText value="{!kml}" escape="false" />" );
ge.getFeatures().appendChild(p);

var la = computeFitLookAt(ge, p, 1.4 );
if ( la != null ) {
ge.getView().setAbstractView(la);
}

ge.getNavigationControl().setVisibility(ge.VISIBILITY_SHOW);
}

// http://kml-samples.googlecode.com/svn/trunk/interactive/ge-poly-fit-hack.js
function getObjectCoordData(ge, kmlObject) {
var out = {
'coords': [],
'altitudeMode': -1,
'maxAltitude': -9999
};

function pushLatLngAlt(lat, lng, alt) {
out.coords.push({
lat: lat,
lng: lng,
alt: alt
});

out.maxAltitude = Math.max(out.maxAltitude, alt);
}

function pushCoord(pointOrCoord) {
pushLatLngAlt(pointOrCoord.getLatitude(), pointOrCoord.getLongitude(), pointOrCoord.getAltitude());
}

function pushChildCall(retval, altitudeMode) {
out.coords = out.coords.concat(retval.coords);
out.maxAltitude = Math.max(out.maxAltitude, retval.maxAltitude);

// stop at first altitudeMode, so if it's already set, don't update it
if (out.altitudeMode == -1)
out.altitudeMode = retval.altitudeMode;
}
//debugger;
// extract the points from the given object
if (kmlObject && 'getType' in kmlObject) {
if (out.altitudeMode == -1 && 'getAltitudeMode' in kmlObject)
out.altitudeMode = kmlObject.getAltitudeMode();

switch (kmlObject.getType()) {
// features
case 'KmlFolder':
case 'KmlDocument':
var children = kmlObject.getFeatures().getChildNodes();
var numChildren = children.getLength();
for (var i = 0; i < numChildren; i++)
pushChildCall(getObjectCoordData(ge, children.item(i)));
break;

case 'KmlPlacemark':
if ('getGeometry' in kmlObject)
return getObjectCoordData(ge, kmlObject.getGeometry());
break;

case 'KmlGroundOverlay':
var latLonBox = kmlObject.getLatLonBox();
var alt = kmlObject.getAltitude();
pushLatLngAlt(latLonBox.getNorth(), latLonBox.getEast(), alt);
pushLatLngAlt(latLonBox.getNorth(), latLonBox.getWest(), alt);
pushLatLngAlt(latLonBox.getSouth(), latLonBox.getEast(), alt);
pushLatLngAlt(latLonBox.getSouth(), latLonBox.getWest(), alt);
break;

// geometries
case 'KmlMultiGeometry':
var children = kmlObject.getGeometries().getChildNodes();
var numChildren = children.getLength();
for (var i = 0; i < numChildren; i++)
pushChildCall(getObjectCoordData(ge, children.item(i)));
break;

case 'KmlModel':
pushCoord(kmlObject.getLocation());
break;

case 'KmlPolygon':
pushChildCall(getObjectCoordData(ge, kmlObject.getOuterBoundary()));
break;

case 'KmlLinearRing':
case 'KmlLineString':
var coordsObj = kmlObject.getCoordinates();
var n = coordsObj.getLength();
for (var i = 0; i < n; i++)
pushCoord(coordsObj.get(i));
break;

case 'KmlCoord': // coordinates
case 'KmlLocation': // models
case 'KmlPoint': // points
pushCoord(kmlObject);
break;
}
}

return out;
}

function computeFitLookAt(ge, obj, aspectRatio) {
var DEGREES = Math.PI / 180;
var EARTH_RADIUS = 6378137;

var coordData = getObjectCoordData(ge, obj);

if ('getAbstractView' in obj) {
var la = obj.getAbstractView();
if (la != null)
return la;
}

if (coordData.coords.length) {
// range calculation -- the hard part
var center = null;
var range = 0.0;
if (coordData.coords.length == 1) {
center = new google.maps.LatLng(coordData.coords[0].lat, coordData.coords[0].lng);
range = 1000;
} else {
// compute bbox
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < coordData.coords.length; i++)
bounds.extend(new google.maps.LatLng(coordData.coords[i].lat, coordData.coords[i].lng));

// find center
center = bounds.getCenter();
var sw = bounds.getSouthWest();
var ne = bounds.getNorthEast();

var lngSpan = new google.maps.LatLng(center.lat(), sw.lng()).
distanceFrom(new google.maps.LatLng(center.lat(), ne.lng()));
var latSpan = new google.maps.LatLng(sw.lat(), center.lng()).
distanceFrom(new google.maps.LatLng(ne.lat(), center.lng()));

if (!aspectRatio)
aspectRatio = 1.0;

var PAD_FACTOR = 1.5; // add 50% to the computed range for padding
var beta;

var aspectUse = Math.max(aspectRatio, Math.min(1.0, lngSpan / latSpan));
var alpha = (45.0 / (aspectUse + 0.4) - 2.0) * DEGREES; // computed experimentally;

// create LookAt using distance formula
if (lngSpan > latSpan) {
// polygon is wide
beta = Math.min(90 * DEGREES, alpha + lngSpan / 2 / EARTH_RADIUS);
} else {
// polygon is taller
beta = Math.min(90 * DEGREES, alpha + latSpan / 2 / EARTH_RADIUS);
}

range = PAD_FACTOR * EARTH_RADIUS * (Math.sin(beta) *
Math.sqrt(1 / Math.pow(Math.tan(alpha),2) + 1) - 1);
}

var la = ge.createLookAt('');
la.set(center.lat(), center.lng(), coordData.maxAltitude, coordData.altitudeMode, 0, 0, range);
return la;
}

return null;
}

</script>

<apex:outputPanel id="map3d"
style="border: 1px solid silver; height: {!height}px; width: {!width}px;"
layout="block" />

</apex:outputPanel>
</apex:component>

Or there's the template for the balloons, but I don't think that's what you're after and I think I'm now at my character limit for this reply!

Hopefully one of those is it - there are other related components and pages, but I can't figure out what each is doing.

Thanks

Nicole