Add Liveblog entries to the feed

liveblog-feed.php

<?php

/**
 * Output Liveblog entries as part of feed content
 **/
if ( class_exists( 'WPCOM_Liveblog' ) )
        add_filter( 'the_content_feed', 'x_add_liveblog_entries_to_feed_content' );

function x_add_liveblog_entries_to_feed_content( $content ) {
        if ( WPCOM_Liveblog::is_liveblog_post() ) {
                $post_id = get_the_ID();
                $liveblog_query = new WPCOM_Liveblog_Entry_Query( $post_id, WPCOM_Liveblog::key );
                $liveblog_entries =  $liveblog_query->get_all();

                $content .= PHP_EOL;
                $content .= '<h2 class="from-liveblog">From the Liveblog</h2>';
                foreach ( $liveblog_entries as $liveblog_entry ) {
                        $entry_info = $liveblog_entry->get_fields_for_render();
                        $content .= '<h5 class="from-liveblog-time">' . $entry_info['entry_time'] . '</h5>' . $entry_info['content'];
                }
        }

        return $content;
}

I wonder if this can be used to create a feed for the liveblog itself, so that can be pushed to social networks and tumblr?