"Google Earth combines satellite imagery, maps and the power of Google Search to put the world's geographic information at your fingertips," says the blurb.
There are also Google Earth Plus ($20) and Pro ($400) versions.
Comment: Great stuff, but it does say "powered by Keyhole" and it's basically a Google-branded version. Also http://www.keyhole.com/ now redirects to http://earth.google.com/