Some organisations will continue to use IPv4 and use mechanisms such as NAT to buy time. Countries like India, with huge populations and burgeoning technical competence, will almost certainly not attempt this, and will move to IPv6 directly. In fact, we can see this happening already in places like Japan, Korea and China. These countries either are already or will become very large markets. Organisations that wish to be active in those markets but do not use IPv6 will be at some competitive disadvantage.