Samsung just announced earnings guidance for Q4 2013, and for one quarter at least it looks like the companys runaway financial growth will stall a bit. Reuters reports that operating profit for Q4 fell 18 percent quarter over quarter to $7.8 billion, a figure that missed analyst expectations. However, it also appears that growth from Samsungs dominant mobile division will be the weakest seen since 2007, when the company first started making smartphones. It looks likely that Samsungs earnings will be down year over year, as well — in Q4 of 2012, the company made $8.27 billion in operating profit. Of course, its worth noting that while Samsung may show some rare weakness this quarter, the company is still raking in profits.