I created my first sample app in Windows Phone 7. In this app I done a small image viewer application and also implemented Landscape handling too.. I just wrote few lines code for this, every thing taken care by inbuilt class. I just wrote photoChooserTask.Show() this line to open photo chooser. It will list the photos in WP7. After selecting the photo it will send that information. So, I just set that photo to an image control   here is the XAML code:- <phone:PhoneApplicationPage x...