It was released to manufacturing in June and now Microsoft’s Compute Cluster operating system for high performance computing is generally available:
Today Microsoft announced the general availability of Microsoft Windows Compute Cluster Server 2003, the company’s first product designed specifically for high-performance computing (HPC). With Windows Compute Cluster Server 2003, Microsoft aims to make it easier to create, integrate and operate HPC clusters within organizations, thereby expanding the technology beyond traditional supercomputing centers by bringing the value of computational clusters within reach of more people.
There’s a Q&A with customers by following the link.