The Infrastructure Planning and Design (IPD) guide for SQL Server 2008 has been released here.
This guide is one in a series of planning and design guides that clarify and streamline the planning and design process for Microsoft infrastructure technologies. ‘Each guide in the series addresses a unique infrastructure technology or scenario. These guides include the following topics:
The guides in this series are intended to complement and augment the product documentation.
The series of guides cover Windows Server, to Virtualization, Desktop Optimization, System Center, Exchange and other mainstream Infrastructure products and technologies.