Earthviewer is a wonderful application that allows us to see and understand about the changes of the Earth in the past million years, new features, geological events, new cities, impact events like global warming and famous fossil sites. I know that little kids barely even care about the fossil sites and history. But they do want to see the features of the Earth, the shape and the colour.
The adult astronomers are more interested in new cities, famous and new fossil fuels and geological features. Earthviewer displays all of these features and I am sure that you will love it! But as every application has their disadvantages, Earthviewer does not show much history about the ice ages. Please don't be too disappointed.
Here is a slideshow of screenshots of Earthviewer: