Currently, when the Pages module is used with the preview option, it gives you the first few words of that page's content. It would be nice to have optional page summaries within each page, so that when the preview option is used, if there is a summary present within the page's source, that would be displayed instead. Google Wiki, for instance, uses this functionality to have summaries next to page names in the list of all pages in a wiki:
#summary One-sentence summary of this page.
Apparently the "#summary" tag delineates the text from this tag to an end-of-line as that page's summary, which is kept invisible in the page's content.
Without this or similar functionality, a user wishing to list his pages with summaries would have to list them by hand on every reference page:
[[[category:page-name | Page Name]]] -- One-sentence summary of this page.
With a summary within each page's source, however, the user could simply use:
[[module Pages category="category" preview="true"]]



