--Market research firm NPD said on 15/10 for the video game sales through mobile phones, social networks, software and download for free registration in first half of 2010 in the U.S. market reached $ 2.9 billion.

This is the first company to make NPD sales figures for non-traditional video games, and provides evidence that consumer spending on video games 40% higher than what is published ago.

Earlier, NPD said sales of the devices and video game software fell 8% in September. Software sales fell 6% to $ 614 million, while hardware sales dropped 19% to just U.S. $ 383 million.

NPD says that many customers are buying the video game software via download or on online social networks to play games by companies like Zynga supply.

Smart phones Apple's iPhone has become a device in common games with gamers who buy games through software applications for Apple.