I have been working on how to get 3D Buildings only the Bing Maps Silverlight control.
Many people believe this to be impossible (or at least not possible for many years)
I have now worked out how this can be achieved. Have a look at the image below.
This is from the University of Otago iMap Campus map http://www.propserv.otago.ac.nz/iMap/
To access this view leave the "Bing Maps View" radio button selected and ckick on "Dunedin" in the menu
There is also a pitch control up the top right
When you mouse over the centre you will get up and down arrows
Click these to adjust the pitch.
Please let me know what you think