[Calgon]

It'd be worth considering if at least 1 mainland ISP in US, UK & AUS actually supported it.

Quote:

Originally Posted by Vince Even Cisco, the main supplier of network devices, acknowledges that IPv4 may never be phased out.

I imagine ipv4 and ipv6 will be used together, in the sense that some networks/websites will not have moved to ipv6, but home connections will have support for both. So it wouldn't be something to completely disregard IMO.