in actionscript? I haven't worked with it for a while but I don't think so. Even if it was possible I wouldn't want yet another layer of abstraction to compile to html.

it's not the graphical authoring environment that really matters. I just prefer the OOP style of AS3 to Javascript.

Open standards are great and all, but the result is that we've had to wait years just for html to catch up to where flash was.