Comment Its a bad trend (Score 1) 2
If you're not sure where these trends are going, see my analysis slide here:
http://photos-b.ak.fbcdn.net/photos-ak-snc1/v4737/98/32/1489056585/n1489056585_30373265_1693711.jpg
IPv6 transition is going too slow, so we are going to have many painful bandaids, like NAT in Carrier Cores, trading and splitting large address blocks, and other fixes that will lower QOS and raise operational expenditure (OPEX) for the Internet - and especially the Internet Service Providers who have been operating a slim margins for some time. How do you avoid this? Deploy IPv6 for your perimeter services and outward facing systems (www server, ecommerce servers, external application servers, VPN, DNS, etc) now and get your IPv6 security in place. This is what Google has done now. In 2012 when this becomes an issue, you can enable IPv6 to your desktop users and hopefully, if anyone besides you and Google has their external services ready, you can see everyone elses external IPv6 services!!!