Summary: HELSINKI (AP) , Mobile game developer Rovio Entertainment Ltd. says the popular Angry Birds franchise helped it double revenue in 2012, with net profit surging more than 55 percent to 55.5 million euros ($71.2 million). The Finnish company says that sales last year were 152.2 million euros, up from 75.6 million euro a year earlier. Net profit in 2011 was 35.4 million euros.
