The slides and the video of my Mix 10 talk are now available at http://live.visitmix.com/MIX10/Sessions/CL17 - thanks again to everyone who made it in-person.
The code is now also available -- just download the ZIP from here and open the solution in the DemoApp folder. Look for comments in the code and the XAML marked with MIX10 and you should be good to go.
Please post any questions about the code as comments and I will try to address them. Enjoy!