For mobile operators, text messaging is the only truly successful data application with volumes increasing year on year. However, ongoing price erosion has caused increased pressure on margins. Ever since the mobile industry recognised this, it has been frantically searching for revenue growth opportunities in new services. However Ovum concludes1 that no other single service has been able to get even close to the text messaging revenues of today. Even in 2009, 80% of worldwide messaging revenues will be generated by SMS.