eiru_product_interest/views/product_template_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>

	<record model="ir.ui.view" id="product_template_interest_form">
		<field name="name">product.template.interest.form</field>
		<field name="model">product.template</field>
		<field name="inherit_id" ref="product.product_template_only_form_view"/>
		<field name="arch" type="xml">
			<field name="default_code" position="before">
				<field name="is_interest" string="¿Es un interes?"/>
			</field>
		</field>
	</record>
</data>
</openerp>