said 1 year, 2 months ago:
We only offer Opt-In text campaigns for clients. The client has to either text in or sign a signup for in order to get entered. We have some doctors so it all has to be handled very carefully but most of our clients just do text opt-ins. We also suggest that they text a maximum of once a week but encourage every other week at maximum. We have been fortunate to only have one case of a client severely abusing their TXTWave account. Other than that, our clients have loved the SMS service.
I think mobile advertising is going to fun to watch how it grows. It is going to need to be very tactful to ensure people are not turned off by it.