My team is trying to build out a Web Template which includes an instantiated Wiki Page with some default Web Parts added to it; but we're unable to get this behavior to happen.
In brief, we're looking to add some default.aspx (or Home.aspx, the name is unimportant, just the functionality) to the SitePages directory, GhostableInLibrary; so it's visible to all SiteCollections made from this Web Template.
It is of note that we're basing our Web Collection off the Team Site, and that the Wiki will be the default Home Page for the new site.