Snackr is an RSS ticker that pulls random items from your feeds and scrolls them across your desktop.
This is the first program that I have installed that uses Adobe AIR, which is a cross platform runtime environment. This mean that Snackr can run on Windows, Mac OS X, or Linux.
All you have to do click the 'Install Now' button. If you don't have Adobe AIR installed, it will be downloaded and installed for you (if you want).