Here's What's Driving Apple Today

Apple fell 4 percent on heavy volume--what's up? Several ideas floating around. The most important one to me: at an AT&T investor conference Wednesday, the CEO of AT&T Mobility said 6.4 million smartphones had been sold the first two months of the fourth quarter, implying sales of about 9.4 million or so for the quarter, about the same as last year's fourth quarter.