We’ve released to PartnerSource the Help Toolkit for NAV 2009 and the source files for NAV 2009 Help. We’re providing the Help Source to partners so that they can more easily provide custom documentation. The Help Toolkit has been overhauled for NAV 2009 with an improved build tool and documentation. You can find the links to the downloads and read more on the NAV Team Blog (http://blogs.msdn.com/nav/archive/2009/02/09/help-toolkit-and-help-source-files-for-microsoft-nav-2009.aspx).
Let us know if you have any feedback!
-Paul Chapman
NAV Doc Manager