Please confirm: Is Windows Workflow Foundation a good horse to be backing right now?

Question

We are in the process of selecting a workflow solution for a company that uses Microsoft products end to end. Given the news on WF4, in that it seems to be essentially a rewrite

Answer 1

Another point to use the current version is that "Dublin" (Microsoft new App Server) will be built on WCF & WF .NET 4.0 but will gladly host 3.5 WF's. So you will be able to migrate to that without a rewrite.