Konfabulator has incredible potential in that nearly anything that can be imagined can be done. WIdgets, which are essentially plug-ins, will run in it's engine and there are now over 170+ widgets available from the Konfabulator site as of today.
For each person, Konfabulator will hold different uses.
I like some of the silly widgets, such as the animated UFO that floats on your desktop.
As well, I get continually updated Weather info, and a quick-link to hide all open apps.
There are lots of widgets already created for it. I recommend checking them out...