Your approach for kmz files is correct. They work exactly like kml files. The docs describe some limits on file size http://code.google.com/apis/kml/documentation/mapsSupport.html
Here's a random kmz file that the api can display: http://mapmanic.com/kml/LasTrampasRegionalWilderness.kmz Map showing that file: http://www.mappingsupport.com/p/gmap4.php?q=http://mapmanic.com/kml/LasTrampasRegionalWilderness.kmz -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
