Here are the projected growth of Wi-Fi enabled mobile phones in US
2009 : 38 million
2010 : 55 million
2011 : 76 million
2012 : 97 million
2013 : 118 million
2014 : 136 million
2015 : 149 million
Here are the projected growth of Wi-Fi enabled mobile phones in US
2009 : 38 million
2010 : 55 million
2011 : 76 million
2012 : 97 million
2013 : 118 million
2014 : 136 million
2015 : 149 million
With the increasing prevalence of Wi-Fi enabled handsets, hotspot usage by handheld devices has increased significantly. As a percentage of total connects, handhelds increased from 20% in 2008 to 35% in 2009. By 2011 handhelds are anticipated to account for half of hotspot connects reports In-Stat.
Recent research by In-Stat found the following:


From: http://gigaom.com/2010/01/19/skype-still-snatching-minutes-from-international-carriers/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+OmMalik+(GigaOM) and http://www.techcrunch.com/2010/01/19/skype-international-calling-minutes-share/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+Techcrunch+(TechCrunch)
A recent study by MediaMark R&I group studies cell phone ownership among the pre-teens as of 2009. The corresponding numbers for 2005 is given in brackets
Age-wise
6-7 years : 6.5% (4.9% in 2005)
8-9 years : 17.7% (10.6%)
10-11 years : 36.1% (20%)
Gender-wise
Boys : 18.3% (12.4% in 2007)
Girls : 21.8% (18.6% in 2007)