In addition to mockups and images, it needs to support videos. This would allow us to create polls that give our portal users a short preview of whatever we are trying to get feedback on.
Today polls support the attachment of animated gifs as a lightweight way that you can show customers what you would like feedback on. You can also attach a video that your customers can download to view. We will use this idea to track interest in attaching a video that could play directly within the poll.