I got some strange looks the other day at SharePoint Connections when I announced that DPM was RTM'd. Read all about it on the DPM blog. (good source for DPM tricks and scripts) http://blogs.technet.com/dpm/archive/2007/10/17/DPM-2007-has-been-released-to-manufacturing.aspx
We are still working on deploying DPM internally. We have piloted DPM and like the results. Now we just have to figure out who will host it (us or "them" - the centralized backup team) and how much we should spend.
Mike Watson