Microsoft has released a new theme for Windows 7 based on Bing Maps Aerial Imagery. You can get breath-taking views of the United States delivered to your desktop with this free Windows 7 theme that captures the best of Bing Maps aerial photography. Once downloaded, this dynamic theme updates automatically through an RSS feed.
Once installed, you need to manually select to download all the images from the web whenever they are delivered through RSS feeds.
Download Bing Maps Aerial Imagery Theme