By 2015 users around the world will be able to connect to 5.8 million  public hotspots, Informa wrote in the "Global developments in public  Wi-Fi" report, which was commissioned by Wireless Broadband Alliance.  WBA members include AT&T, Boingo, Cisco Systems, Deutsche Telekom  and Google. Its goal is to make Wi-Fi services easier to use.
 
 Mobile data growth is a key reason for the rapid build-out of Wi-Fi  hotspots, according to Informa. On Monday, telecom equipment vendor  Ericsson published a report which contends that mobile data traffic will  grow tenfold in 2G, 3G and 4G networks between 2011 and 2016. 
 
 To handle the growth, operators will have to use a number of different  technologies, including Wi-Fi, LTE (Long Term Evolution) and traffic  shaping, according to Thomas Wehmeier, principal analyst at Informa.
 
 Users don't care about acronyms like 3G, 4G or Wi-Fi, as long as their network connection works well, according to the WBA. 
 
 However, to increase usage, hotspots also have to become easier to use.  Operators and vendors are working on integrating mobile networks and  Wi-Fi hotspots more closely, including using SIM cards to simplify the  log-in procedure and roaming between different networks. 
 
 The Wi-Fi Alliance is next year planning to launch a certification  program that will offer standardized mechanisms for discovery,  authentication and provisioning. The program will be based on its  Hotspot 2.0 specification, which also used by the Wireless Broadband  Alliance as it trials next-generation hotspots. In June, the two  organizations said they will cooperate on developing hotspots.
 
 But the buildout of Wi-Fi hotspots isn't just about offloading data.  Telefonica is using Wi-Fi to build a location-based services and earlier  this year hotspot provider The Cloud was acquired by British Sky  Broadcasting Group, which is mostly known for its satellite TV services.  
 
 The report also highlights the proliferation of smartphones, which will  soon overtake laptops as the most popular way to connect to hotspots.  Globally, smartphones account for 36 percent of all connections,  compared to 48 percent  for laptops and 10 percent for tablets. However,  in North America smartphones already outnumber laptop connections,  according to Informa.
 
 Informa defines public hotspots as a place that offers Internet access  to all members of the public, either for a fee or for free. The report  excludes 4.5 million community hotspots, where consumers today share  their broadband connection with others using equipment from Fon.
