Here they are:
- Basic Authentication middleware (contrib.auth.middleware?), http://code.djangoproject.com/ticket/3609
- S3 file backend (in contrib.files?), http://code.djangoproject.com/ticket/6390
- Dictionary to xml support for building APIs. The serializers for Django are a mess but simplejson is lovely.
- Context processors for the site name, site domain and url for use in templates. As defined by the project settings file and not contrib.sites (which is my least favorite Django app) please. I've custom built all these things for Pownce but now I'm working on a side project and am super annoyed that I need to port them over.
Two apps with these custom features makes me think that they really should be in Django. On a positive note, the side project is almost done and it uses Django with CouchDB. More details soon!