I’ve put the sample code online for my presentation tomorrow.  You can download the assets here

The code is a nearly full implementation of a “new” feature in Flex Builder called “Find Usages.”   It takes advantage of the search APIs to find all usages of any definition in a given file, and display then in a table viewer.  The source code is licensed under the MPL, and it’s a great example of how to use Flex Builder’s extensibility APIs to create new features. 

Also included is a tree viewed that will let you navigate the AST structure for files being editing in Flex Builder.  Let me know what you think, and I’ll try to answer any questions as they come up.  Hope to see lots of smiling, alert, awake faces at my 9:30 session tomorrow.