I just uploaded the presentation materials and code to the Adogo SVN repo at the following URL.

http://svn.adogo.us/200805/FlexNoFrameworksRequired/

Here are some useful links relative to the presentation and/or the discussions we had afterward.

Gateway Pattern
Registry Pattern
Observer Pattern
Asynchronous Completion Token Pattern (PDF)
Swiz Framework (IoC container for Flex)

Enjoy! Please feel free to post questions and comments to this entry or to the Adogo mailing list.