So at least for the moment and the forcastable future, we will still in need of IPv4, so as many of other colleagues. Not really, what we NEED is IPv6 - IPv4 will just hang around more and more, until it gets to annoying. Nobody NEEDS IPv4, perhaps they need to LIVE WITH IPv4 for some time. its like saying you NEED wired Ethernet to be on the internet
well we -need- ipv4 to work untill google, facebook and youtube (as well as anyone else that chooses to remain relevant ;) have AAAA records on their normal www entries... after that, we no longer care for ipv4... basically... and i believe they all want to make the final move in june this year and turn it on permanently, so after that, bye bye ipv4... if ppl don't migrate their stuff, that's their problem, main priority for eyeball networks: google, facebook, twitter, etc works, if "thegrocerystoreonthecorner.co.uk' doesn't work, too bad. so yes, google, do your thing..