Galin Iliev's blog

Microsoft has just released Building a Windows Phone 7 Application from Start to Finish in the MSDN Library. This is very cool tutorial for WP7 applications. This content is intended to help developers with common challenges by putting the features together in a complete application from whiteboard to marketplace.

Some of the tasks that you will learn include the following: Defining your application from an idea Creating a new Windows Phone project Creating pages Navigating between pages Laying out a page Using controls to create the UI Adding images and icons Creating a consistent look Displaying data Creating data classes Saving and loading data Restoring your application after deactivation Validating data entry input Incorporating photos on Windows Phone Publishing your application in the Windows Phone Marketplace

Hope that helps