Once a month, the Utah Technology Alliance sponsors something they call 'technology\\@breakfast.'  This morning's meeting featured Satel, a local security consultancy who supplied much of the computer security to the 2002 Olympics.  I spoke briefly at the beginning on the importance of WiFi and the absolute necessity to stay out  ahead of users in deployment if you're going to maintain security.  If you don't stay out ahead of them, you'll have rogue wireless networks springing up all over.  Stay out ahead and you get security and interoperability.