ABI Research says that data usage in Western Europe and North America from 2009 until 2015 is expected to increase at a compound annual growth rate (CAGR) of 42% and 55% respectively.
However, this increase in data traffic is not being matched by a rise in data revenues for network operators. Mobile data revenue is expected to grow at a CAGR of only 18% in North America, restricted in part by the popularity of 'unlimited' or 'fixed price' tariffs.