Facebook has announced that the preferred method of deploying applications within tabs is to use iframes. Their plans indicate that FBML tabs will eventually become obsolete.
Good Return's landing page will be moving forward to use iframes integrated with social plug-ins as opposed to using FBML code. The application will now be used as the landing page as opposed to using a secondary application (as previously used 'Static FBML' app). This will allow more flexibility and control over the content of the page. It will all be hosted on the web service at www.dammahom.com/.