The document is a high level summary of IPv6 enhanced features: IPv6 – Ready for Prime Time? – Part II: The Enhanced Capabilities of IPv6
This article gives a very good grounding in the history of how IPv6 was developed, and why: IPv6 – Ready for Prime Time? – Part I: History and Design Criteria
An excellent article from Business Week on how public procurement policy in the USA is helping US business get ready for IPv6 More Elbow Room On The Net
Ladid, Latif and Bound, Jim and Pouffary, Yanick and Rich, Yurie and Green, David (2006) IPv6 Forum Vision 2010 Roadmap. In: The IPv6 Forum World Congress, 21-22 February 2006, Las Vegas.
This document was based on discussions at the IPv6 World Congress in February 2006, Las Vegas, and on subsequent discussions.
The document combines a technical perspective and overview (drawing on the core expertise of the IETF members who specified the RFCs that make up IPv6, and related industrial and academic research expertise), and a business case overview. The report places these perspectives within the context of models predicting when IPv4 address shortage will start to happen, and when this shortage have a major impact on the Internet as we know it (e.g. Tony Hain’s IANA IPv4 Pool Depletion Model Internet protocol Journal article and Updates to model).
IPv6 Hope, Hype and (Red) Herrings (Doug Montgomery June 2005) is an excellent older slide set laying out IPv6 issues. The quoted dates for IPv4 exhaustion are out of date now (March 2007), with predictions indicating earlier exhaustion.