The spread of that information has already extended to Google competitor Microsoft Virtual Earth, which has started to include KML files in Live Search Maps.

On your second computer, just double-click the KML file in your cloud folder. It will open Earth with all of your placemarks. This isn’t a perfect solution.

This could be programmers generating KML through code, people manually creating KML files by hand (a tedious job, but doable), or people getting KML from third party applications.

When you open a KML file that has time data attached to its contents. The time data for a given item may be either a specific point in time or a span of time.