“Nearly 1 Billion Smart Connected Devices Shipped in 2011 with Shipments Expected to Double by 2016, According to IDC.” International Data Corporation, March 28, 2012.
From the article: "The universe of smart connected devices, including PCs, media tablets, and smartphones, saw shipments of more than 916 million units and revenues surpassing $489 billion dollars in 2011, according to the International Data Corporation (IDC)…Looking ahead, unit shipments for smart connected devices should top 1.1 billion worldwide in 2012. By 2016, IDC predicts shipments will reach 1.84 billion units, more than double the 2011 figure, as consumers and business of all shapes and sizes around the world are showing a nearly insatiable appetite for smart connected devices. This works out to a compound annual growth rate (CAGR) of 15.4% for the five-year forecast period." Read more