Bit busy, so just a very quick update.
The Integrated Session Fix I wrote about a couple of weeks back has now passed Sitecore QA and is now made available on SDN. From personal experience I can concur, I’ve been running it myself on the websites I am working on and not had any problems (other than those already known and mentioned on SDN, specifically that IIS would recycle my pool often if not moving the Index folder out of the Web Root).
I fully realise that me running it on a handful of non-live sites doesn’t qualify as QA however, so I’m glad to now see this somewhat officially endorsed 
The original post has also been updated.
