Full Text Feed Plugin
Prevents WordPress 2.1+ from adding a more link to your website's feed.
WordPress 2.1 introduces a nasty “feature” to feeds. Instead of abiding by your feed preferences, WordPress will truncate your feed’s content anywhere you insert a <!–more–> tag. Full Text Feed undos this functionality, allowing your feeds to contain the full text regardless of <!–more–> usage.
Installation
Unzip full_feed.zip, drop the full_feed.php file into /wp-content/plugins/, and activate the plugin.