While there are some 600 million broadband lines in service worldwide, affordability remains a major obstacle, particularly in Africa, where fixed broadband access costs on average three times monthly per capita income, according to the ITU's newly published "Trends in Telecommunication Reform" annual report.In contrast, mobile cellular and mobile broadband services remains very competitive in 92 percent of all markets. By the end of 2011, ITU estimated that the number of mobile-cellular subscriptions reached close to 6 billion, representing a...