The world will run out of IP Addresses soon! Thus ISP's and other big organizations need take this seriously and deploy their system in order to make it easy to shift from IPv4 to IPv6 ! newcomers wont be able to get ip addresses under the 32 bits IPv4 standards, and they need to use IPv6. Only 0.2% of the companies are using the 128 bits IPv6, introduced long time ago. Unfortunately IPv4 & IPv6 are not directly compatible with each other. for instance programs and system designed for IPv4 cannot communicate with those designed for IPv6. With the recent system, cellular, computers, etc.. it is hard to use the IPv6 standards, those system will not function well with it. The firewall on those systems for example will keep blocking and will not grant access to the Internet. I think it is time to take a step further and develop a scalable systems and use a set of new methods to increase the compatibility between both standards and avoid any future complications.