Yahoo officially released Flickr app for Windows Phone7. The Flickr Windows Phone 7 app is available in Zune Marketplace and the Windows 7 tablet app can be downloaded from the Flickr website. Key features of Flickr app includes

• Swipe through panoramic blades to see all your recent activity, latest uploads from your contacts and all your newest uploads.
• Fully optimized for brilliant hi-resolution display. Tap on a photo to bring up a full-screen lightbox view and zoom in to enlarge and get close up on details in a photo. You’ll be able to access your photos in their original resolution, right from your mobile device!
• On Windows 7 Slate devices, we’re introducing “Context View”, a whole new way to get the full story behind a photo and discover new and relevant content. Zoom out from a photo in lightbox view and get more information such as other photos in the set, group, from a contact or nearby on a map.
• Geo-location capabilities display your photos on an interactive, full-screen map. Also view nearby geo-tagged photos from the Flickr community on the map as well for a slightly different view of the world around you.
• Easily share photos to your friends from your mobile device directly to Flickr and also from Facebook, Twitter or email!