Here is a simple example mashup that automatically cycles through a set of Virtual Earth 3D Scenes every minute.  This mashup shows how to control the screen view of Virtual Earth 3D. 

Virtual Earth 3D Scenes Mashup

Here are some screenshots of some of the scenes:

 

If you want to go to the next scene or previous scene without waiting for the update every minute, manually click on ">>" or "<<" on the bottom of the screen.