Though the purchase price is an anomaly, the message behind Facebook's $1 billion agreement to buy photo-sharing application Instagram is not: apps are where the money is.
It's a sentiment echoed by countless startups now writing software applications for smart phones and tablets. All are hoping for a share of the $6 billion in revenue that Forrester Research says apps generated in 2011 from purchases and ads. Forrester expects app revenues to double this year, to $12 billion—an incredible figure for a market not yet four years old.
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