NAT isn't dead with IPv6. ISPs assigning a /128 to your residential network is a thing.
No it isn't unless they want to ban you from using iPhones.
What do you mean? If the v6 configuration is incompatible with iPhones, the iPhone will just use v4
No it isn't unless they want to ban you from using iPhones.
What do you mean? If the v6 configuration is incompatible with iPhones, the iPhone will just use v4