I am nervous mixing the wxFrame code with the processing code.
I would be too. It's easy to get in a situation with Boa (or many
many other gui WYSIWYG editors) where you either break your code, or
break your ability to use the editor.
If your trying to use a frame completely generated by Boa to get/set
data, interact with the user, I would try putting all my application
logic in a seperate module all together and importing your custom
frame. Do whatever you can to not touch the layout code!
Some people have pretty good arguments to avoid a GUI editor all together:
http://www.hacknot.info/hacknot/action/home
Me, I'm taking the middle road and using XRC to layout my GUI stuff
(except for the occasional really simple thing, do that by hand.)
--Matt