There are several possibilities to use MongoDB in Django:
Django MongoDB uses django-nonrel, which is a fork based on Django 1.3.
I don’t like this idea, because now Django 1.5 is ready to out. Beetween Mongoengine and MongoKit, I like more Mongoengine. There are several comparative articles:
So I created a simple CRUD app using Mongoengine. The model definition in Mongoengine looks like in Django.