вот как я это делаю
abstract class Gestionale_Form_Abstract_Form extends Zend_Form
{
protected $_myParams;//params per customizzare il form in base all'action edit/new
public function __construct($options = null, $myParams = null)
{
$this->_myParams = $myParams;
parent::__construct($options);
}
....
, а затем, например,
class Form_Contatto extends Gestionale_Form_Abstract_Form
...
$clienteid->setValue($this->_myParams['data']['id']);//