Today I added feature tests for the <XML format="XML">, <XMLList>, <Model>, and <Metadata> tags. Next to come will probably be <Component> and <Definition>, and then property/style/event attributes/tags. Once we've got a set of tests for all kinds of tags and attributes, I'll work on states and databinding.
I'll be on break and not reading flex-dev until Thursday, Jan 3. In January I'll try to get Adobe Legal to release an MXML specification that I wrote several years ago when I started working on the compiler. - Gordon