The Yahoo Widget Engine, formerly known as Konfabulator, has now been updated to version 3.1. There is quite an extensive list of changes for both the Mac and Windows versions. From scrolling through the change list it appears that many of the changes are to help safeguard the user and beef up the security.
If you haven’t used the Yahoo Widget Engine before, then I am sure that you will find it quite impressive if you try it. It is a simple way to get a lot of information right on your desktop. From RSS feeds to your local weather (or even your local gas prices!). You have 2,400+ widgets that you can choose from and manipulate in various ways.
The one thing you need to remember is that every widget the you run takes up more RAM. So if you are on a computer that doesn’t have much RAM then the widgets can definitely make it a little sluggish. They recommend having 512MB of RAM but I would say 768MB would be a little more reasonable.