Today MSN launched the Interactive Guide to the Battle of Britain. The application was build by Microsoft-partner Shoothill and has 3 major components:
1. The TimeMap is based on Bing Maps Silverlight Control. It shows original maps, stomach reconnaissance imagery and target documents of the German Luftwaffe. You can navigate to various locations through quick links in a target list for London and Coventry. The TimeScope can be dragged around to explore the location; the TimeSlider lets you switch between various historic maps and satellite imagery and the Docs-button allows you to explore DeepZoom-Compositions of the original target documents within the TimeScope. 
2. The Archive is a DeepZoom Composition with historic documents and photos. As usual Shoothill has created this composition as a huge mosaic. 
Zoom closer to explore the secrets not only of the mosaic itself but also of once top secret documents. 
3. The Photosynth “Hangar” contains Photosynth-Collections of the Heinkel He 111, the Supermarine Spitfire and the Hawker Hurricane in the RAF Museum in London. 
There is a lot to explore check it out for yourself here.
^JK