The fleet of mobile devices (Nokia and Windows Mobile) all use WiFi to connect to the internet. There wasn't a good tethering option. The fleet are all in down

The fleet of mobile devices (Nokia and Windows Mobile) all use WiFi to connect to the internet. There wasn't a good tethering option. The fleet are all in downtown Mountain View (a place flooded with varying WiFi signals. This problem is compounded by having dozens to hundreds of devices in close proximity to each other. We found that the devices would not hold a reliable persistent connection which would cause intermittent Talos test failures. Each of these failures could potentially waste a person's time to go deal with it which in turn wastes money. Hence they came up with the Faraday cage. Please note this is just the story as I understand it from taking a tour of the room. I might have missed something important or subtle there. :)