If you’re using GMap-Track to publish your location live to the web, here’s a quick cool hack in anticipation of the release of the API. A GMap-Track URL can return KML instead of a Google Maps-based placemark, like so:

http://www.gmap-track.com/api?v=1.00&output=kml&method=location.get.user&getuser=ogleearth

Just be sure to first wrap that inside a network link, like so. Voila, now you can find out where your friends have been recently when you log onto Google Earth. (Thanks to GMap-Track’s Cristian Streng for for the tip.)