Hey came across this when I installed an update to my Google Earth - seems like Google Earth and FboWeb have teamed up and come up with some really neat stuff - you can get a 3D track of a flight or see all traffic for selected airports (warning - comes up as a big blob of planes !!) but you can also track individual flights by flight number and it will show other aircraft in vicinity of the one you are tracking - they have a frequency map overlay for LAX - the link for the sectional charts seems to be broken though - still pretty neat stuff - once you load the file on a flight it will keep updating it - Joe
http://www.fboweb.com/antest/ge/intro.aspx?old=1
http://www.fboweb.com/antest/ge/intro.aspx?old=1