Might take a bit longer. Looking at http://www.google.com/intl/en/ipv6/statistics.html http://www.google.com/intl/en/ipv6/statistics.html it's doubling every y

Might take a bit longer. Looking at http://www.google.com/intl/en/ipv6/statistics.html http://www.google.com/intl/en/ipv6/statistics.html it's doubling every year. So it's going to take another four to reach everywhere. Maybe 6/6/2020 :-) (And there are plenty of IPv4-only devices out there, like printers, Consoles, etc. So I suspect another five years after that before there's so little left that the address space starts clearing up again.)