I've never had occasion to try it on a framed page and thinking about what is involved I'm not sure I can come up with something suitable. In fact, I'm not sure I can come up with something at all.
Movable page elements are relatively simple, given a browser capable of dealing with them, but being able to drag and drop from one page to another outside the parent page breaks all the logic I'd use to begin with on the first page. If that sounds confusing at all I know what I mean, even if you don't ;o)
I'll think on it and see if I can come up with something.