I like that this allows sharing templates between ich and the server. Will you offer pre-compilation and i18n support?
I'm working on a template language; none of the ones I have found support everything listed on this README:
https://github.com/meric/crater/blob/master/README
(Well there's jade on node.js but I'm not sure it'll work for anything other than HTML)
To make it extra friendly to Django developers, you might want to do just a couple extra little housekeeping things:
* Structure as a Django app. Place jsmetatemplate.py in templatetags/jsmetatemplate.py
* Make the license clear with a `LICENSE' file.
* Add test(s).
* At some point, include distutils things (setup.py) and upload to PyPI for straightforward installation with easy_install/pip.