It is not that South Asian telcos are not moving in this direction, but I have not seen as good a description of a comprehensive solution to the “pain point” of international data roaming from them. I invite them to submit links if such descriptions exist. Telecom New Zealand has announced that, as of December 21, 2012, customers will have a simplified global-roaming charge rate that will dramatically cut the costs for using data while overseas. The rates for post-paid customers start at NZ$6 per day for data if travellers are visiting Australia or Christmas Island, or NZ$10 per day for the US, UK, Canada, China, Macau, Taiwan, and Saudi Arabia. For the rest of the world, the rate varies between NZ$2.