Mike’s session covers how to create ActionScript 3.0 / Flex 2 components from scratch right through to deployment in your Flex 2 application.
You will learn how to create your component framework, extend your classes from existing Flex ones, as well as integrate your component into your Flex application.

Finally finishing off with additional assets that help to make a good component a great component when distributed for others to use.

Presentation: PDF, Source