So far as in the U.S i think we're a long way off having a solution thats going to overtake payment methods such as CC, Phone Billing and the likes.

Dont forget, cell phone wise, the US is still decade behind the majority of the world when it comes to the potential of SMS and MMS billing solutions, there are definately some viable options however, for most US based programs, unless you arent targeting US traffic, SMS / MMS billing at the present time isnt going to add to much to your bottom line profits.

The average cell phone user in the US doesnt use text messaging as much as their counterparts throughout the world do. I mentioned in another thread on a similar topic a few months ago that 5/6 years ago in the UK i could order my weekly groceries via my mobile phone, that ability still hasnt made its way to the US beause the SMS culture in America isnt as wide spread as it is throughout Europe, Asia and, Australia at the present time, its getting better, but its no where near reaching its full potential at the present time.

Regards,

Lee