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We’ve uncovered a great piece by Gartner that says Consumers Will Spend $6.2 Billion in Mobile Application Stores in 2010.  That compares to $0.6 Billion worldwide in mobile advertising revenue.  Worldwide app stores brought in $4.2 Bn in 2009, and that number is forecast to balloon to $29.5 Bn by 2013.

Here’s a chart and story by Gigaom showing the power of mobile applications: