I created my first widget. It's not that pretty yet, but it is functional. I have to do some more reading on best practices, etc, etc. Right now, I'm using aqua controls on my widget, and apparently that's a no-no. All the buttons should be graphical. The size of my widget is fixed, and I would like to make it resizable. Also, I want to maybe add a preferences flip-side to it.
By far, in my opinion, this is one of the coolest features in Mac OS X (Tiger). Anyone with some web development knowledge can create these little things. I'll write about creating a widget in a future post.