Django flatpages is great when you only has a simple site with a "title" and "content" block. Anything more than that will give you trouble, such as multiple locales, extra picture uploads box, etc.
Looks like Django CMS looks pretty interesting with WYSIWYG and drag-and-drop interface. Yea yea yea you can add a TinyMCE in 5 lines of code with flatpages, but somebody else did the dirty for you here. Will try this on my next Django project.