I presented Windows Phone 7 talk on Microsoft Virtual tech Days (VTD) [22/11/2010] and here are the demo and the slide deck I referred to. Please feel free to download and refer.
—Introduction to Windows Phone 7
—Tools for Development on Windows Phone 7
—Using Silverlight for WP7 development
—Navigation among pages of application
—WP 7 application lifecycle
—Launchers and Choosers
—Fetching data from server using ODATA service (using LinqPad 4)
—Deployment model of WP7 application
—Q & A
Here is the slides
Here is the code.
Also, your comments are welcome.