Django as app backend

[jompa]

I was thinking about using django as backend for a simple smartphone
app and, as I'm quite unexperienced with Django and it's
possibilities, was wondering if anybody has any experience of this.

Basics:
Abillity ro create a node with image, description etc (backend admin).
Retrieve nodes via JSON, XML API.
Possibility to rate node from app, with unique identifier.

Needed:
Imagefield handler (imagekit?). Prefered CDN pushing.
RESTish framework. Perhaps with user creation.

Anybody with similar experience that would like to share their
thoughts on good plugins, gotchas or recommendations would be deeply
appreciated.

Thanks
/J