Hey - we just updated django-multisite to work from app template directories.

README.markdown

@@ -1,7 +1,7 @@
 README
 ======
 
-Get the code via svn:
+Get the code via git:
 
     git clone git://github.com/shestera/django-multisite.git django-multisite
 

multisite/template_loader.py

@@ -3,15 +3,39 @@
 import os.path
 from django.contrib.sites.models import Site
 from django.conf import settings
+from django.template.loaders.app_directories import *
+
 
 def get_template_sources(template_name, template_dirs=None):
     template_dir = os.path.join(settings.TEMPLATE_DIRS[0], Site.objects.get_current().domain)
-    try:
-        yield safe_join(template_dir, template_name)
-    except UnicodeDecodeError:
-        raise
-    except ValueError:
-        pass
+
+    if not template_dirs:
+
+        template_dirs = app_template_dirs
+        for template_dir in template_dirs:
+            try:
+                host = Site.objects.get_current().domain
+
+                # template directories shouldn't need to include port number 
+                # so remove the port from the sites domain name for the search path.
+                try:
+                    host = host.rsplit(":")[0]
+                except:
+                    pass
+
+
+                template_dir = os.path.join(template_dir, host)
+                yield safe_join(template_dir, template_name)
+
+            except UnicodeDecodeError:
+                # The template dir name was a bytestring that wasn't valid UTF-8.
+                raise
+
+            except ValueError:
+                # The joined path was located outside of template_dir.
+
+                pass
+
 
 def load_template_source(template_name, template_dirs=None):
     tried = []