They're making progress against file corruption issues in Windows Home Server. That's the good news. The bad news is that the issues underlying the problems are so fundamental that nothing like a comprehensive fix is happening in a hurry.
Even so; the number of installations affected seems to be almost as small as Microsoft says it is and there are a LOT of things you can do to avoid the problems at all, fix or no fix. This article gives them in a nice, compact list.