Wireless data service revenues for the first half of 2008 reached $14.8 billion, a 40 percent increase over the first half of 2007, when data revenue totaled $10.5 billion, according to the CTIA-The Wireless Association latest survey.

Wireless data revenues now account for 20 percent of all wireless service revenues, and represent money that people spend on non-voice services.

The word "growth" pretty much sums up with global wireless data market’s performance last year.  Two key changes occurred as a result: India managed to overtake the U.S. in terms of subscriptions, and the U.S. passed Japan in terms of service revenue.