We'll need to wait for the company's earnings later this month for the final numbers, but Motorola has now provided some preliminary results for the fourth quarter of 2011 that indicate smartphones accounted for more than fifty percent of all the mobiles devices it shipped. Specifically, Motorola estimates that it shipped a total of 10.5 million devices in the quarter, 5.3 million of which are smartphones (there's no further breakdown beyond that). That's up from 4.8 million smartphones in the previous quarter, although the total mobile devices slipped slightly from 11.6 million. The company also says it expects "modest profitability" with estimated sales of $3.4 billion for t
