We watched the presentation for the Flex 3 and Air launch.

https://admin.acrobat.com/_a40120448/p55794966/

Here’s the white paper on Air Security
http://download.macromedia.com/pub/labs/air/air_security.pdf

Adobe has a link to a PDF of an API reference guide for Flex 3 and Air here.

http://www.adobe.com/devnet/actionscript/articles/atp_ria_guide.html