IPv6-only + NAT64 networks aren't coming "soon"; T-Mobile has been operating this configuration on non-Apple devices for the last 1-2 years: http://www.interne

IPv6-only + NAT64 networks aren't coming "soon"; T-Mobile has been operating this configuration on non-Apple devices for the last 1-2 years: http://www.internetsociety.org/deploy360/resources/case-study-t-mobile-us-goes-ipv6-only-using-464xlat/ http://www.internetsociety.org/deploy360/resources/case-stud... Android (and more recently, Windows Phone) uses 464XLAT to keep the AF_INET socket APIs on life support. Apple didn't like that design, so instead they're telling app developers to fix their code. It remains to be seen whether Apple's iron fist can weed out the IPv4-only apps well enough to satisfy the carriers, or if they'll backpedal and implement a broader compatibility hack.