API ignoring some values (e.g. 'control')

I'm going to build a custom block to show locative information. Later on this piece of code should be moved into the node template. I read a lot and ended up with this code for a block:

if (arg(0) == 'node' && is_numeric(arg(1))) {
$nid = arg(1);
$node = node_load($nid);
$latitude = $node->location['latitude'];
$longitude = $node->location['longitude'];
$mymap=array('id' => 'mymap',
             'latitude' => $latitude,
             'longitude'=>$longitude,
             'zoom' => 10,
             'control' => 'Small',
             'tcontrol' => 'off',
             'width' => '100%',
             'height' => '250px',
             'type' => 'Satellite',
             'markers' => array(array('latitude' => $latitude,'longitude'=>$longitude))
);
print theme('gmap', array('#settings' => $mymap));
}

This works but in this special case 'control', 'tcontrol' and 'type' are ignored. So the control is always large and the map type is 'map'. To make sure this was not fixed already i updatet from alpha1 to the latest 5.x-1.x-dev (2008-Mar-19) but the behaviour still appears. Am i doing something wrong, is there already an issue or did i miss anything else?

Thanks, Ronald