Sorta half-true. There are a lot of WISP's where users only get IPv6 addresses. The WISP runs 4to6 CGN devices for the IPv4 only sites. Greenfield IPv6-only IS

Sorta half-true. There are a lot of WISP's where users only get IPv6 addresses. The WISP runs 4to6 CGN devices for the IPv4 only sites. Greenfield IPv6-only ISP's are new now, but will be much more common in the future. Comcast kicked this idea around (at either NANOG or the @Scale conference) of not giving end users v4 addresses at all and doing 4to6 NAT in the cloud within 2-3 years. Despite its overwhelming usage, IPv4 is already a second class citizen.