I won't tell you what it is, but people probably have figured it out. To see it, download Google Earth 4.2 Beta, and press ctrl+alt+a (repeatedly if it does nothing at first). This also works on a mac, but press ctrl and alt equivalents (erm motorway intersection thing and option)..
if you just can't wait to find out what it is, highlight below...
Google Earth 4.2 now has a flight simulator. See me trying to fly into the empire state below
and keep the first few comments...vague
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