Yes, Chris, I'd love to have a tool like that. It would certainly shorten the bxml debugging cycle.
My current strategy is to use the Pivot plugin for Eclipse, but it's pretty limited -- it only lets you run a bxml file whose top level node is Window and doesn't use any user classes (right?). So I develop chunks of bxml in a scratch bxml file, and when I'm happy with it, copy it into the actual control I'm building. Sounds like Chris's tool would let me do away with the scratch file and develop the code in the place I want it to be, possibly with the involvement of other classes in my project.
