I think the flap idea came up a long, long time ago, but I can't remember what was said about it. I just did a search for 'flap' here, but didn't see it. May have been brought up in the ANH:R thread... *checking* Nope. Well, it is a good idea, but I know I heard it somewhere. Oh, maybe in a Darth Editous thread! *checks the DE ESB and ANH threads* Nope.
At any rate, it would be nice to hear if Ady thinks it's worth doing.