The fastest growth in 2012 came from North America, especially the US, where mobile search and display ad spending was up 220%. Spending doubled in the Middle East and Africa, from a very small base, while growth in the rest of the world’s regions was below average. In Asia-Pacific, spending was up a comparatively small 40%.
In emerging markets, however, growth was booming. Mobile ad spending in China was up 138%, and Indonesia and India each enjoyed 110% growth rates. Read the rest at eMarketer.