Hi all, Ned here. A new Technet operations guide has been published that walks you through how to migrate from FRS to DFSR for non-SYSVOL folders running on Windows Server 2003 R2 and Windows 2008:  

DFS Operations Guide: Migrating from FRS to DFS Replication

We (Mike Stephens and I) are also working on a migration tool to be available from CodePlex. There is no ETA on this as even though we are code complete, we are entering the lawyer phase that is out of our control. The tool gives you a way to list, export, and delete your old FRS replicas then configure DFSR to replicate the same files on the same servers, all through a command-line interface, all pretty automagically. More on that when I have something concrete to tell you - again, please don't keep asking for ETA in the meantime, I am just going to ignore you. :-)

Ned "thank goodness that's done" Pyle