Pete,
I supplied a set of PDFs to David with my analysis of the three riders' data we took back when we measured the course. I also included a copy of my analysis of the calibration course length.
My understanding at the time was that David wanted these documents to include in his overall report to the IAAF after the race. I have not heard anything from David during the actual games or more recently, so I hope everything went well.
Watching the races on TV, the line available to the runners looked pretty good. It was certainly not inside what we measured. There appeared to be a few places where the legs of the barriers intruded very slightly over the road kerbs and so would have increased the distance, but overall the amount was small enough that no question should be raised of the accuracy of the course as run.