Windows Phone How-To Videos

Here is a quick set of links to some great Windows Phone starter videos:

Channel 9:

These videos are fantastic and what I used when I was getting started with the platform!

Session 1: Introduction
Session 2: Building a Silverlight Application, Part 1
Session 3: Building a Silverlight Application, Part 2
Session 4: The Application Bar
Session 5: Building XNA Games for the Windows Phone 7 Platform, Part 1
Session 6: Building XNA Games for the Windows Phone 7 Platform, Part 2
Session 7: Isolation Storage
Session 8: The Application Lifecycle
Session 9: Launchers and Choosers
Session 10: Push Notifications
Session 11: Marketing your Windows Phone Applications
Session 12: Working with Media

New Sessions:
Session 13: Panorama and Pivots
Session 14: XNA Deep Dive, Part 1
Session 15: XNA Deep Dive, Part 2
Session 16: Location and Bing Maps
Session 17: Optimizing for Performance
Session 18: Designing Apps Using Expression Blend & Metro
Session 19: Ask the Experts podcast

MSDev;

These are all videos I have found on MsDev that will help you learn fast:

Windows Phone 7 in 7: Introducing Windows Phone 7
Windows Phone 7 in 7: Getting Started with Windows Phone 7
Windows Phone 7 in 7: The Windows Phone 7 Application Architecture
Windows Phone 7 in 7: Silverlight and Windows Phone 7
Windows Phone 7 in 7: XNA and Windows Phone 7
Windows Phone 7 in 7: Windows Phone 7 Controls
Windows Phone 7 in 7: Connecting to Web Services
Windows Phone 7 in 7: Windows Phone 7 and Data
Windows Phone 7 in 7: Using Isolated Storage
Windows Phone 7 in 7: The Application Bar
Windows Phone 7 in 7: Developing for the Windows Phone 7 Web Browser
Windows Phone 7 in 7: Globalization and Localization
Windows Phone 7 in 7: Building a Location-aware Application
Windows Phone 7 in 7: Push Notifications
Windows Phone 7 in 7: Security and Windows Phone 7
Windows Phone 7 in 7: Using the Accelerometer
Windows Phone 7 in 7: Using Media in Windows Phone 7 Apps
Windows Phone 7 in 7: Manipulations
Windows Phone 7 in 7: SIP Layout
Windows Phone 7 in 7: Using the Windows Phone 7 Cameras
Windows Phone 7: How Do I: Use MVVM in a Windows Phone 7 Application?
Windows Phone 7 Developer Tools
Windows Phone 7: How Do I: Make Windows Phone 7 Applications Support Orientation Changes?
Windows Phone 7: How Do I: Use Page Turn Animation in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Use Touch Manipulation in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Implement Tilt Effects in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Use XNA for Gestures and Collision Detection in a Windows Phone 7 Application?
Windows Phone 7: How do I: Use Push Notifications in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Use Push Notifications for Tile Customization in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Save Images to the Pictures Hub and Retrieve them back from the Hub in a Windows Phone 7 Application?
Windows Phone 7: How Do I: Implement Tombstoning in Windows Phone 7 Applications?
Windows Phone 7: How Do I: Use XNA for Game State Management in a Windows Phone 7 application?

For Android & iPhone Developers: 

Windows Phone 7 for Android Developers: The User Interface
Windows Phone 7 for Android Developers: Data
Windows Phone 7 for Android Developers: Graphics
Windows Phone 7 for Android Developers: Performance
Why Windows Phone 7 for the iPhone & Android Developer
Windows Phone 7: How Do I: Migrate an Android Application to a Windows Phone 7 Application?
Windows Phone 7 for Android Developers: Visual Studio 2010
Windows Phone 7 for Android Developers: Java to C#
Windows Phone Developer Tools for the iPhone Developer
Windows Phone 7: How Do I: Migrate an iPhone Application to a Windows Phone 7 Application?