NWSGI is a .NET implementation of the Python WSGI specification using IronPython. It is implemented as an ASP.NET HttpHandler. The main goal is to provide an easy path for running Python web applications/frameworks (such as Django, Trac, etc.) on IIS7.
This version brings improvements to configuration and performance.
IronPython itself has improved dramatically (kudos to the team for a fantastic job) and is now capable of running parts of Django, although some workarounds are still required. I can make it through the tutorial, and once I get some testing with 2.0b4 done I'll post patches as well.
I'm going to start testing against some other applications as well, and post the results on my blog as well as the compatibility pages on ironpython.info.