I've updated the draft that defines an extension that can be used to
indicate that the order of entries within a Feed should be considered
significant.
http://www.ietf.org/internet-drafts/draft-snell-atompub-feed-index-02.txt
Example,
<feed xmlns="http://www.w3.org/2005/Atom";
xmlns:fi="http://purl.org/syndication/index/1.0";>
...
<fi:ordered sort="descending" />
<entry>
<id>tag:entry:1</id>
...
</entry>
<entry>
<id>tag:entry:2</id>
...
</entry>
<entry>
<id>tag:entry:3</id>
...
</entry>
</feed>
The fi:ordered element indicates that the order of the entries as
presented in the feed should be considered to be significant. The @sort
attribute indicates the default sort order for those entries. A value
of "descending" indicates that the entries should be presented
last-to-first. A value of "ascending" indcates that the entries should
be presented first-to-last.
- James
