The site admin could then select which module loads by default as an index page. For example a directory site could show links module and a support site the faq module... and so on.
Also some specific "index modules" could be then developed for showing different things at the home page.
Examples for indexes:
News + announce box (traditional)
Search + links + ad (search engine style)
New dicussions + dowloads + weather
or whatever you can imagine...
This would move Postnuke from news portal to more versatile cms system. What do you think?