Google added two new views in iGoogle RSS feed gadget: “a slideshow view for photo feeds” and a “view that shows headlines and a snippet from lead story.” You can change the view for each feed by clicking arrow icon, selecting "Edit settings" and choosing one of three views: headline only, headline and lead story or slideshow (see pic). “These new views not only create a better experience for users, but also give publishers an opportunity to more easily expose rich content, often already present in their RSS feeds. To take advantage of this new feature, publishers simply need to add images and associated Media RSS and/or enclosure elements to their existing RSS feeds. We’ll then grab the images, resize them down as necessary, and provide hosting/caching. Additionally, we’ll make the images clickable and display a 150 character snippet in the “Headline and lead story” view. This feature is launching in the US over the next day with full international support coming soon,” explains Goole.
More info: publisher instructions