OK, I give up. Apple $1,000?

Eighteen months ago I questioned whether Apple stock could keep up its amazing momentum: 'Over the past five years the stock has gained an average of 56% a year, an extraordinary achievement,' I wrote. 'For the shares to rise at a similar rate from here would take it to $1.25 trillion by 2014. Even to grow at a more modest 20% a year would take it to $333 billion