Add a "Map" tab to Location-enabled nodes so the map can easily be viewed

I think it would be good if the Gmap module provided a tab by default that showed the GMap for Location-enabled nodes. I have accomplished this by adding the following code to gmap.module. My apologies for the lack of patch - I need to find a way to make patches more easily or else I just don't get around to doing them in the middle of the work day.

Anyway, I added this code to the gmap_menu():

  	$items['node/%node/map'] = array(
    'title' => 'Map',
    'page callback' => 'gmap_node_map',
    'page arguments' => array(1),
	'access callback' => 'gmap_node_map_access',
	'access arguments' => array(1),
    'weight' => 2,
    'type' => MENU_LOCAL_TASK
  ); 

And here's the page & access callbacks:

/* Page callback for node map tab */
function gmap_node_map(&$node) {
	if($node->location['latitude'] && $node->location['longitude']) {
			drupal_set_title(t('Map: ') . check_plain($node->title));
				$marker_words = "<h2>" . check_plain($node->field_volopp_org_name[0]['view']) . "</h2>";
				$macro = "[id=map1 |center=" . $node->location['latitude'] . ", " . $node->location['longitude'] . " | markers=" . $node->location['latitude'] . ", " . $node->location['longitude'] . " | zoom=6 |width=300px |height=300px |align=None |control=Small |type=Map|tcontrol=on]";
				$map = theme('gmap', array('#settings' => gmap_parse_macro($macro)));
				$output = $map;
		  }
	else {
	$output = "Map not available.";
	}
	return $output;
}

/* Access callback for location_node_map() */
function gmap_node_map_access(&$node) {
	if($node->location && user_access('access content')) {
		return TRUE;
	}
	else {
		return FALSE;
	}
}