It might be a good idea to stop comparing Minneapolis to Vienna. Vienna had a host and Minneapolis did not.
I'm not sure there should be any difference. I was the host in Adelaide but I didn't do the radios, I "out sourced" them to a local company that specialises in that sort of stuff. They were interested in seeing a large deployment of radios and understanding the problems encountered. Perhaps we should be targeting these sort of companies to help us?
Mark.