Going back to our example of the local Maker Party page, if you were to add the page like so, Project:Local_Maker_Project, you would not be creating a new namespace, just a page whose URL has a colon within the Main namespace.
Currently, WikiMo has over 50 namespaces. There was a trend to create namespaces for projects like Bugzilla and Gecko. Going forward, wiki admins will not be adding more namespaces. If you want to group pages of a project together you can should create subpages.
=== How to Create a Subpage ===