Introduction to IP Version 6
Microsoft has recently updated (as of Jan 26th, 2007) this introduction to IPv6.
Yes, it really will be implemented in our lifetime. It is worth a couple of minutes (or hours) to get started thinking about IPv6.
Download the guide at Microsoft's download site at: http://www.microsoft.com/downloads/details.aspx?familyid=cbc0b8a3-b6a4-4952-bbe6-d976624c257c&displaylang=en&tm