Thankfully, I downloaded Google Earth a few days ago (when it first was announced) because they suspended new downloads for it temporarily.
It’s hands down the coolest computer application I’ve ever seen. It’s the entire earth in 3D. It brings together satellite images, maps and lots of other stuff Google does into a single really cool interface. For major cities, it even has the buildings in 3D, so you can fly through them.
One thing that’s especially cool is the elevations are accurate, so I can go to my new property and actually check out the views (which are totally accurate) from my computer. It’s really neat.
They are working on a Macintosh version, so I’ll be even happier when that’s out.