I was building some site templates and tried to set the option “sub sites” for Top navigation, but not for the Quicklaunch. After reading these blogs: http://blogs.msdn.com/vesku/archive/2007/03/23/controlling-navigation-options-from-the-onet-xml.aspx and http://sharepointbergen.blogspot.com/2007/03/controlling-site-navigation-in-site.html I noticed there were some changes in SharePoint 2010 navigation when using the publishing feature.
Here are the new properties that are in SharePoint 2010:
IncludeSubSites and IncludePages still work, however they set the value for of the subsite and page property of both the Global and Current section.
The (misspelled) property AutomaticSortingMathod still works, but you can also use AutomaticSortingMethod.