35% of US mobile phone owners use text messaging
Although 79% of consumers find the idea of mobile ads annoying, early efforts at mobile marketing have revealed that consumers will happily engage in campaigns as long as marketers deliver valuable information or content. According to Forrester Research, a growing number of consumers are shifting from voice-only mobile services to other activities, creating a viable audience for mobile marketing. 35% of US households that own a mobile phone currently engage in text messaging and 11% access the mobile Internet.

174 mln users to get into mobile social networks by 2011
ABI Research found that “mobile social communities” currently count nearly 50 mln members worldwide, a number that is expected to reach 174 mln in 2011.
http://www.abiresearch.com/products...

$1.56 bln generated from mobile gaming in Asia in 2005
Mobile gaming in Asia/Pacific has been successfully established, with revenues reaching $1.56 bln in 2005, reports In-Stat. Mobile gaming in Asia/Pacific will reach $4.4 bln in 2010. 3G users spend 70% more per month on mobile gaming than 2G users. Interest levels in mobile gaming are low, with more than half of both 2G and 3G users indicating they would be unlikely to play mobile games within the next six months.