As outlined in the following blog post the HPC team will not be taking LINQ to HPC forward.
As part of this release we’ve also updated the preview version of LINQ to HPC, however, this will be the final preview and we do not plan to move forward with a production release. In line with our announcement in October at the PASS conference we will focus our effort on bringing Apache Hadoop to both Windows Server and Windows Azure.
This forum will remain open and you are free to post questions here. However this LINQ to HPC is not a fully supported Microsoft product.
Program Manager, LINQ to HPC
First a great innovative project is created.
Then you release preview versions that I couldn't even install (because not many of us have datacenters or just many HPC Servers piled around). Of course you don't let these previews to be used on Azure or anything other than cluster of HPC Servers.
At last you decide to scrap this great project since nobody is using it and completely move to an inferior competitor's product.
It's so hard to love MS seeing all of this.