I will update here with more information as they become available for this exciting distribution which covers MPI on Azure, Azure VM roles and other exciting new and essential features.
· What's New in Windows HPC Server 2008 R2 Service Pack 2 Beta
· Test Focus Guide for Windows HPC Server 2008 R2 SP2 Beta
· Release Notes for the Beta Release of Microsoft HPC Pack 2008 R2 Service Pack 2
· Deploying Windows Azure VM Nodes in Windows HPC Server 2008 R2 SP2 Beta Step-by-Step Guide
Published to Microsoft Connect: (Make sure you sign up for the beta, and is signed into Connect using your liveID).
· Dryad Beta Documentation: Overview, Programmer’s Guide, and Beta API Reference