Microsoft is adding easier billing methods in Developing Countries where Creditcard usage is much less than the Western world. It has always been a  problem for users in these countries like Mexico, Indonesia etc to buy Apps in the Store. Most of them just use the Freemium apps and Devs are compensated via ADs revenue. But this is not always a good plan for some apps, therefore this new initiative from Microsoft will go a long way. Now users can get billed via their telephone service providers when they buy an App. Here is the full statement below: