You need to keep in mind that each country will have its own regulations. Also the payouts from the operators/carriers can in some cases be a long drawn out process when it comes to getting you funds. I think you will be lucky to find any mobile billing processors in Asia as the majority of mobile payment services are not adult friendly.
http://www.itelebill.com/ This would be a good place to start as they will be more than happy to provide you more information on how you can move forward. They are also familiar with the adult market... Ask for Danii
