Spent some time today updating the missing bits of the OS X version of the Dropbox cloner I uploaded last night. You can just grab the executable or grab the whole project from the github repository.
The app can now backup/restore of local config, clone dropbox configs to a URL/file and also impersonate a captured Dropbox config.
Use it all at your own risk. As stated in the original post, all comments, bugs, additions, fixes etc. are welcome either here or at github.