www.WirelessFederation.com/news: Hong Kong’s mobile data usage surged to 147 TB in January or an average 44 MB per 2.5G/3G mobile user, according the statistics available from Ofta. This shows four times and fourteen times the mobile data usage over the same period in 2008 and 2007 respectively. The subscribers of 2.5G/3G mobile phone have grown by 15% to 3.35 million in January on a year-on-year basis. The subscriber base totals to 11.43 million and penetration rate is over 163%. The growth of mobile data usage is attributable to the offer of competitive service packages by mobile network operators and the increasing popularity of smartphones available in the market, Ofta said.