This is a basic appengine Django app I built as a demo. It implements a very simple blog system which has Posts and basic tagging. There's only support for creating a post with tags, viewing the post list, and filtering the posts by tags.
I've also integrated bootstrap using django-bootstrap-toolkit
django-nonrel does not support the use of ManyToMany fields, so to implement tagging I used ListField from django-toolbox.
Clone this repository. Run the build.sh script which will use pip to install all the related packages like django-nonrel inside the project directory. If it doesn't work just take a look at requirements.txt and build.sh and manually sort it out.
View it live at jmoztest1.appspot.com