Margaret and I were sitting on a bench on Nantucket sipping tea and coffee (respectively), and Margaret wondered about the people who have in the past gotten knicker-twisted about others using their open wifi signals. “They called it ‘stealing bandwidth,’” she recalled, “but with iPhones and other handheld wireless-using devices around, is anyone making a fuss about it any more? Is everyone with an iPhone implicitly a bandwidth thief? Or did the world just get used to it, and password-protect signals that they didn’t want to share?”