Topic: Widget examples
I've posted some sample code for a couple of widgets - a simple analog clock, and an RSS-based widget that pulls information from one of our servers.
Both widgets are pretty well documented and can be used as foundations for your own widgets. Both require Flash MX (aka Flash 6) or later.
You might also want to review the rapidly changing documentation here. I've posted information on how to access the various sensors from Flash.
Have fun!