As I've written in this space, text spamming is on the rise. While it is becoming more worrisome, the issue is tiny compared to the volume of spam delivered via email.
Here's what I told Mobile Marketer about the Federal Trade Commission moving on companies that allegedly are using SMS to send spam:
“It's sad that we can't police ourselves as an industry, but if the end result is no spam and an expanded use of SMS by marketers, the FTC's efforts should be applauded."
I had more to say in the full article which is here - http://www.mobilemarketer.com/cms/news/legal-privacy/14927.html