Dave, I think this makes sense if you want to have a default page per category (aka the first page shown when displaying a category), but you will limit yourself in the ability to define other pages to be the first page instead. Also, what do you gain from the approach of not visiting the categories package ?
You could also achieve the same by displaying the categories page (from admin categories) and create a link there for "create an xowiki page here".
I guess my main problem is to see the use case of why you would like to do this.
Here are some things though I worked on lately / will work on later (probably):
* XoWIKI Page Blocks. This allows you to have an XoWIKI Page made up of Blocks, which are formated according to a template and shown all on one page. This is similar to the one-page view of XoWIKI, yet works very differently due to the fact that the block is part of a page and rendered as such.
* Linking of XoWIKI pages to random objects so they can be rendered there. E.g. an XoWIKI page as the intro for a Seminar (instead of using the description field).
Things that I will work on:
* Sub pages: This will allow you to split up an existing page into multiple sub pages which can show up on the navigation. This is similar to blocks, but where blocks have anchors so you can jump to them on the same page, sub pages will actually take you to a separate page, albeit still showing you in the same context of the parent page. This will be done using the xowiki references.
