The first change it jumps into the eye is the new Plasma appearance, called Aero now. It is brighter than the old one, but I found it looking not so appealing, at least not for the desktop widgets. Here’s how the desktop looks in Kubuntu Jaunty, with several widgets running on the desktop:

The first change it jumps into the eye is the new Plasma appearance, called Aero now. It is brighter than the old one, but I found it looking not so appealing, at least not for the desktop widgets. Here's how the desktop looks in Kubuntu Jaunty, with several widgets running on the desktop: