Samsung's corporate earnings missed expectations and its mobile division saw flat growth year-over-year due to pressure from inexpensive rivals and Apple's new lineup of iPhones, according to an analysis of its fourth-quarter earnings by Bloomberg. The Korean conglomerate reported net income of 7.22 trillion won ($6.7 billion), well short of the 8.2 trillion won that analysts were expecting. Operating income at the company's mobile unit, its biggest profit maker, was 5.47 trillion won, down from a record 6.7 trillion in the prior quarter, and roughly flat year-over-year. The company also said it planned to cut its mobile marketing budget after heavy spending also impacted its fourth-quarter profits, reported Reuters. It will also look to make its marketi