Life has been very busy on the family front. My son and I currently are sharing the house with 4 woman. Not the best environment for software development :-), so haven't progressed very far with the threaded version of isapi_wsgi.
Looks like I will be giving a short presentation on WSGI at the next Sydney Python Meetup, so I have been looking at other WSGI implementations and adaptors. To date my presentation demos have run with a number of them, so the promise of WSGI looks like reality.