I just found this guys presentation at defcon 18
It is a really good overview of IPv6 and how the end is near - and especially how our community need to be prepared for when clients start asking us why they cannot get to certain websites.
Most stuff i have been reading is really confusing like how it doesnt get natted, instead isp's hand out subnets to each of their customers with 65,000 avaliable addresses - more than enough for every device in the home.
Anyhow here they are
The first one you can skip forward a couple of mins as he talks about something else first