Note: The following covers features and material that will be available in 4.2, which will not be released until January 2009.
No X11 desktop shell can be considered complete unless it has "eyes", right? Behold, new eyes plasmoid in all its scalable SVG greatness!
Now that this is in kdeplasma-addons, our work here is obviously done. =P
On a more serious note, the Plasma team is making great progress these days. I particularly like the new Plasma style notifications that are part of the new system tray:
If you have more than one notification, they stack up on top of each other. As you can see they have cute curved edges, even without composite, and they are themable. We'll be adding the UI server jobs there as well. And yes, those are Extenders! =)
The new system tray supports icon hiding, embedded Plasmoids and more. Fun! The panel configuration bar is looking really slick, and when the panel configuration is shown right clicks "pass through" the Plasmoids themselves so you can get to the context menu for things like removal or configuration easily.
You'll also be able to install scripted Plasomids from the Internet properly in 4.2.0:
Unfortunately those two scripts are packaged incorrectly and thus do not actually work with the automagic installation. At least you get a cute error dialog now when that happens, and properly formed packages do install.
The first "developer corner" I'll be doing on the videocast will be on making Plasmoid packages. We'll work backwards from there to actually writing a simple Plasmoid from the ground up. =)