An unintentionally mail posted in the Flex mailing list talks about one of the new Flex 2.0 features, the support of E4X.
This means that probably the new flash player will support it also… This should be a great step over the old “DOM” flash support.. in this case XML entities will be threated as builtins objects Read more about ECMAScript for XML (E4X) Specification: http://www.ecma-international.org/publications/standards/Ecma-357.htm

see the original post