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.
The break up of AT&T in 1984 led to a seismic shift in telecom policy and regulatory thinking worldwide and also created the conditions for the Internet boom. New Zealand is a small country quite unlike the US, but it has taken an unprecedented step that has the potential of changing policy and regulatory thinking again. As the excerpt below says, the split is on the lines of the BT reorganization in the UK. That is true. But the key difference is that BT reorganized voluntarily and NZ Telecom, not.