The Microsoft HPC Pack 2008 R2 and its SDK have been updated to 'Release Candidate 1' (RC1). This is your last opportunity to provide feedback on a pre-release version of the HPC 2008 R2 solution, so come and check it out:
If you have never joined the HPC Pack 2008 R2 beta program you can do so here:
http://connect.microsoft.com/HPC/InvitationUse.aspx?ProgramID=3069&InvitationID=3gen-FD4X-XGF7
Otherwise you can access the new downloads here:
http://connect.microsoft.com/HPC
The Connect site also features a simple method of submitting feedback/issues/suggestions in a way that you can track and know the development team received the info.