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This plugin adds the function get_page_tags which allows you to get an array of tag objects for any page or post you want.

Usage:

<?php
$tags = get_page_tags($post->ID);
foreach($tags as $tag)
{
    echo '<li id="tag-'.$tag->term_id.'"><a href="/'.$tag->slug.'">'.$tag->name.' ('.$tag->count.')</a></li>';
}
?>

The array contains tag objects identical to the tag objects returned by the get_the_tags() Template Function.