PHP Class Comments

I'm working on a standard way to comment each class.  This will be helpful for two reasons...
1) It improves the generated API displaying comments in a more structure way.
2) The class file itself will have more/better information for developers thus making it easier for new comers to comprehend and contribute to the code base.

Here is a sample class.php file with important elements commented.  Do you have any suggestions?

This appears at the front of every file...
<?PHP
/**
 * PHP OpenBiz
 *
 * LICENSE
 *
 * This source file is subject to the GPL license that is bundled
 * with this package in the file LICENSE.txt.
 *
 * @package    BizSystem
 * @copyright  Copyright (c) 2005 through 2009, Rocky Swen
 * @license    http://www.gnu.org/licenses/gpl.txt     GPL  
 */

This appears at the beginning of every class...
/**
 * A class that is treated as the bi-direction proxy of client. Through this class,
 * others can get client form inputs, redraw client form or call client javascript functions.
 * 
 * @author     Rocky Swen <rocky@phpopenbiz.org>
 * @version    1.2 2008-04-01 
 */

This is for class variables...
    /**
     * why do i exist?
     * @var array
     */

    protected $m_RequestArgs;

This appears at the beginning of every method
    /**
     * get the client form data passed by GET or POST
     *
     * @param string $name - Comments
     * @return string $val - Comments
     */

    public function GetRequestParam ($name)
    {
        $val = (isset($_REQUEST[$name]) ? $_REQUEST[$name] : "");
        return $val;
    }