Active address field in registration page

It's very easy to active address field in registration page.
Just add an action tag in customer.xml:

<customer_account_create translate="label">
        <reference name="content">
            <block type="customer/form_register" name="customer_form_register" template="customer/form/register.phtml">
                <action method="setShowAddressFields"><value>true</value></action>
                <block type="page/html_wrapper" name="customer.form.register.fields.before" as="form_fields_before" translate="label">
                    <label>Form Fields Before</label>
                </block>
            </block>
        </reference>
    </customer_account_create>