Interesting experiment for the BBC News Interactive section: They decided to test out Norwich's citywide service by working in the great out of doors. They had a variety of trouble with VoIP over Wi-Fi phones, but they did manage to use Skype on a laptop. Power, of course, reared its ugly head. Not signal power, but electrical. All four reporters ran out of juice within a couple of hours and needed to borrow a long extension cord to charge. (Photos)