(the awesome one ;) ) Specify, download and display images/pictures from an RSS feed in fullscreen ! You can set a interval to control how often the app fetches the RSS feed and downloads current images/pictures, and an interval that controls how long to display individual pictures before blending to the next one.
Please note that there are different formats of RSS Feeds. There is an example of a working feed in the Help-Section of the app, and if you provide a Feed that you want to work, I will be more than happy to integrate it and update the app!
(Visit http://www.codalibre.de/news/android-app-rss-image-viewer.html to see php/imagemagick scripts that generate dynamic pictures from pictures/images and data and a valid RSS-Feed).