http://www.google.com/intl/en/landing/noradsanta/index.html#utm_campaign=en&utm_medium=hpp&utm_source=en-hpp-na-us-gns-norad

It is possible to track Santa with mobile device too http://m.noradsanta.org

Does anyone have access to the .kml file?

All I'm seeing on the Google Earth page is:
   <<Sorry, the Google Earth Plug-in is not supported on your browser or platform.>>

Last year they supplied the kml file so that you could open it in Google Earth.