Based on preliminary numbers, Motorola said its Q4 2006 sales figures are now estimated to be in the range of $11.6 to $11.8 billion, versus the guidance given on October 17, 2006, of $11.8 to $12.1 billion. Fourth-quarter GAAP earnings per share are now estimated to be in the range of $0.13 to $0.16, which is below the company's internal forecast at the start of the fourth quarter.Motorola said the shortfall in both sales and earnings occurred in its Mobile Devices segment. The company cited an unfavorable geographical and product-tier mix of...