Vancouver Sun: Thirty-five years ago this month, Martin Cooper picked up his phone, dialed a number and changed the world. Cooper was the general manager of Motorola’s Communication Systems Division. He was calling a rival at AT&T to gloat. What mattered was not what he said, but how he made the call. Cooper was calling from a street corner in New York City in the first public use of his new invention — the cellular phone. Today more than three billion cellphones are in use around …