Read original post at The Telerik Blogs
Software development, like many other things, is learned by studying theory and applying that theory to practice. While practicing however, it is also a good idea to learn existing software to reinforce the theory and also learn a trick or two that are not mentioned in the books.
With this in mind we decided to create a complete sample app for Windows Phone that will be free to download, modify and reuse in order to help you with your Windows Phone development. It is a Picture Gallery app that demonstrates how to create a native Windows Phone client for Flickr or another image service.