ActionScript 2 to ActionScript 3 Migration Reference

Just noticed this, but there is an ActionScript 2 to ActionScript 3Migration reference up on Labs.

This is a great reference to get an overview of some of the changes.

You can view the reference here.

You can download the Flex Builder 2 alpha and start playing around with ActionScript 3 from here.

Note that it looks like a huge document, but a lot of the changes are just APIs moving into a package (as part of the general API clean up).