Filed under: CellphonesCoincidence or not, Apple has stiffened up the requirements to pick up a new iPhone shortly after announcing that 250,000 or so of the 1.4 million it sold in Q4 went to unlockers. In an admittedly intriguing move, Apple has decided that it will "no longer accept cash for iPhone purchases," and moreover, each individual will only be allowed to buy two (on plastic, of c