Django is not ready for python 3.x right now. The support for 3.x is in "beta" right now. I hope when the final 3.x support is released, a lot of more traction is going on towards 3.x . The current state is pretty bad :(.
That said, it's not that bad, even with Django. I think you over-estimate the current state of affairs. Six will be bundled with Django 1.5. By 1.6, I am confident that Django will be 3/2 compatible. Until then - I'm not hurting by running 2.7. Seriously, it's just not a problem. No angst.
All in all, with a year left in the migration path, I'd say we are doing OK. The VM is in good shape for production use and the libraries are coming along well.
I think the biggest danger is all the hand-wringing about how everything has gone wrong, who didn't read the fine-print to start.