I've committed code that allows you to specify an RSS feed for your
page, allowing you to override the default RSS feed for the site.
Doing so will substitute the URL for the RSS icon in the Phoenix
header, and it will also add a <link rel="alternate"> in the
page, enabling the Firefox/MSIE "subscribe to page" feature.
http://wiki.eclipse.org/Using_Phoenix#RSS_Feeds
As per bug
202825, the above method should be the standard method for
declaring the availability of a page-specific RSS feed.