Farhad Manjoo thinks Apple still has nowhere to go but up
                                
                                
                                    (Newser) -
                                    You might think that with its stock north of $500 a share, after rising 30% in six months, that Apple has peaked financially. But you'd be wrong, writes Farhad Manjoo of  Slate . Apple's price-earnings ratio is still a humble 14—cheaper even than Google, Amazon, and even beleaguered...