According to the Dail Mail (yes, I know I mustn't believe what I read in the press) Monarch are planning to provide wi-fi internet access for passengers at 35,000 feet. So presumably they're not worried about electronic devides being used to access the service. Is this feasible and how does it work given the coments in this thread?
Monarch to become first to offer wireless internet at 35,000 feet | Mail Online
These services are only offered on aircraft that have been specially engineered and tested to handle RF in the WiFi band (2.4GHz).