This is a three part tutorial that shows how to turn Popfly mashups into desktop gadgets using the Sidewinder Web Applications Viewer.
The first tutorial creates a Popfly mashup that shows your Facebook friends in a rotating carousel, to be used in the later tutorials. If you are familiar with Popfly, or already have a mashup that you want to use as a desktop gadget, then you can skip to the second tutorial.
The second tutorial makes use of the mashup created in the first tutorial to show different ways that it can run as a gadget on the desktop, simply by altering the URL that is used by Sidewinder to load the mashup.
And the final tutorial shows how to write a few lines of script for Sidewinder to execute, that will then control what happens when you select a friend from the image carousel. (The final tutorial had to be split in two to meet YouTube upload requirements.)
If you want to follow along with the tutorial, or build your own desktop gadget using Sidewinder, you'll need to install Sidewinder. You can also obtain the full source of the JavaScript used in the tutorial, from here:
http://sw.swcube.com/svn/SWViewer/trunk/samples/popfly-facebook.js