Today is the 4th anniversary of World IPv6 Launch and I talked in this episode about why that matters and what people should do. More info in this CircleID post:

http://www.circleid.com/posts/20160606_google_ipv6_stats_hit_12_percent_on_4th_anniversary_of_world_ipv6/

and also:

http://www.circleid.com/posts/20160505_apple_requires_all_ios_apps_work_on_ipv6_only_networks/