Windows Phone 7 Development
Here are some resources for Windows Phone 7 Development
General Information about WP7: http://www.windowsphone7.com
Free Developer tools download and developer resources: http://developer.windowsphone.com
Code Samples for Windows Phone: http://msdn.microsoft.com/en-us/library/ff431744(v=VS.92).aspx
Windows Phone 7 Training Kit: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=ca23285f-bab8-47fa-b364-11553e076a9a