3rd Planet is supported by the Media Development Authority of Singapore (MDA).
Not sure if MDA would censor anything from it, but hey, it looks pretty cool, have a look at the video preview.
It does look alike Google Earth, but focused mainly on tourism areas.
World's most extreme and inclined airport, The Lukla airport.
Another part of Nepal.
Looks cool eh? though it isn't as high-res'd as I thought, still, it's pretty cool to be able to virtually head to the place you're going/not going and have a look.
Another side note, 1st million users get to sign up for free, I guess the rest will have to pay(argh, even Google Earth is free)