The CTIA, the wireless association for the USA, has released their mid year survey, which found that American’s sent over 740 billion text messages in the first half of 2009. A daily average of 4.1 billion per day. Text messaging in the US continues to grow in popularity. Last year US carriers sent over 1 Trillion SMS messages. 277 Million Americans now own a mobile device – just over 89% of the U.S population.