New documentation with Dynamics AX 2012 Feature Pack
The Feature Pack for Microsoft Dynamics AX 2012 released last February 1st brought the Retail flavor to Dynamics AX 2012. With it a lot of new documents were release also. You can find these at
The first page of that search query as you can see, al have a release date of 31st of January 2012. Go get them 
Microsoft Dynamics AX 2012 Upgrade Guide
This document provides information about and instructions for upgrading to Microsoft Dynamics AX 2012 Feature Pack.
FREE
Release date:
1/31/2012
New, Changed, and Deprecated Features for Microsoft Dynamics AX 2012
...that are planned to be implemented in Microsoft Dynamics AX 2012, including Microsoft Dynamics AX 2012 Feature Pack. Additionally, the document...features that are planned to be removed in Microsoft Dynamics AX 2012 or future releases.
FREE
Release date:
1/31/2012
Microsoft Dynamics AX 2012 Guide: Installation
This document provides information about and instructions for installing Microsoft Dynamics AX 2012.
FREE
Release date:
1/31/2012
Microsoft Dynamics AX 2012 Privacy Statement
This privacy statement explains many of the data collection and use practices of Microsoft Dynamics AX 2012 and Microsoft Dynamics AX 2012 Feature Pack.
FREE
Release date:
1/31/2012
PCI Implementation Guide for Microsoft Dynamics AX 2012 Feature Pack
This guide describes how to implement Microsoft Dynamics AX 2012 Feature Pack in compliance with the Payment Card Industry (PCI) Data Security Standard version 2.0.
FREE
Release date:
2/1/2012
Microsoft Dynamics AX 2012 System Requirements
This document lists the system requirements for Microsoft Dynamics AX 2012.
FREE
Release date:
1/31/2012
Retail Deployment Guide for Microsoft Dynamics AX 2012 Feature Pack
Detailed procedures for planning and performing an installation of the Retail components of Microsoft Dynamics AX 2012 Feature Pack.
FREE
Release date:
1/31/2012
Retail Scheduler Technical Reference for Microsoft Dynamics AX 2012 Feature Pack
This document provides instructions for setting up and working with the scheduler feature in the Retail module of Microsoft Dynamics AX 2012. This feature is available only if Microsoft Dynamics AX 2012 Feature Pack is installed.
FREE
Release date:
1/31/2012
Retail Store Connect Technical Reference for Microsoft Dynamics AX 2012 Feature Pack
Advanced configuration information for the Retail Store Connect component of Microsoft Dynamics AX 2012 Feature Pack.
FREE
Release date:
1/31/2012
What's New in Microsoft Dynamics AX 2012 Feature Pack for Retail
This document describes new features and feature enhancements in the Retail module in Microsoft Dynamics AX 2012 Feature Pack.
FREE
Release date:
1/31/2012
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Enjoy