Nope, you have to add at least a report to your new module to enable it.

For example:

<?xml version="1.0" encoding="utf-8"?>
<openerp>
  <data>
    <report id="sale.report_sale_order"
            name="sale.order.webkit"
            auto="False"
            model="sale.order"
            file="sale_order_webkit/report/sale_order.mako"
            string="Quotation - Order"
            webkit_header="base_headers_webkit.base_reports_portrait_header"
            report_type="webkit"/>
  </data>
</openerp>

This automatically adds a link on the Print Menu. It's based on the model.