I used mProjector, a 3rd party Flash Projector creator, to make the exe from the Flex swf. Only took 2 lines of ActionScript to get it to size & position correctly; no changes were needed to the Flex code to get it to act like this (although, background-alpha: 0 in your css helps, hehe!).
I so can’t wait till Zorn…
*** Warning! The below uses a lot of RAM; save your work. ***
Flex on the Desktop