I agree the ability to turn off wifi should be part of raspi-config, but will this also enable USB wi-fi devices?

Might blacklisting be the preferred method?

I could see this being part of a beer brewing system... something that can monitor a temperature sensor, and turn on/off heating or cooling devices to keep fermentation temperatures exactly as i want them Check out: http://www.youtube.com/watch?feature=player_embedded&v=JMZebKpwklE http://zizzle-br...