This is good news for mobile phone companies, which have become increasingly desperate to find ways of getting more money from their subscribers.
Nokia's N-Gage phone is designed with games in mind
But Mr Tercek of the digital media consultancy Machines That Go Ping said the growing popularity of mobile gaming would require a new way of thinking for the phone operators.
"They are used to thinking of just minutes, of just voice," he said in his opening address to the Game Developers Conference Europe, being held this week in London. "Operators are not used to data, especially in the US."