Currently django-admin-tools does not work properly for Django 1.4. I just copy a admin/base.html template to each project now, but that's just silly.
Could you release a version that works with 1.4? (and for example, 1.3 users could keep using the old admin-tools)
Secondly, because of the low response/update cycle, would you be willing to hand over maintainership to a new developer?