Wagtail is a new, open-source Django CMS focused on flexibility and user experience. It was originally built for the Royal College of Art, but now we're able to share it with everyone. See
https://github.com/torchbox/wagtail
and
http://wagtail.io (marketing site)
and
http://www.rca.ac.uk/ (first big site built on Wagtail)
We're really proud of the user interface, and we hope that Wagtail will make it easy for Django developers to build beautiful, modern sites. Feedback very welcome!
Tom Dyson, Technical Director at Torchbox (Wagtail developers)