Understanding Flash window modes for embedding HTML rendering in Flex app

An excellent write up about Flash window modes. I'm attempting to use an IFrame in my Flex application to punch a hole into the Flash movie and allow HTML rendering in my Flex application. When doing this, one needs to understand window modes. I'll probably have more to say about the IFrame solution in Flex, but for the meantime, here are some very relevant links:

http://www.communitymx.com/content/article.cfm?cid=e5141

http://ccgi.arutherford.plus.com/blog/wordpress/?page_id=171

http://ccgi.arutherford.plus.com/blog/wordpress/?p=173

http://ccgi.arutherford.plus.com/blog/wordpress/?p=133

http://www.deitte.com/archives/2007/09/html_in_flex_wi.htm