Here are the newly added backgrounds for the two Bing Dynamic Windows 7 themes with some really nice imagery added including a unique shot of a Florida football stadium undergoing a renovation of sorts.
By the way, did you know you can subscribe to the RSS feeds for these two themes and be able to use the backgrounds on non-Windows 7 machines? The links are Bing Aerial Dynamic RSS Theme Feed and Bing Desktop Dynamic RSS Theme Feed and can be accessed with your favorite RSS reader.
Bing Dynamic Windows 7 Theme – 94 total images.
Bing Maps Aerial Imagery Windows 7 Theme – 183 total images.