In less than a week, KDE 4.1 is ready for their debut for public usage. I believe there will be a massive reviews about this release, as it's a big milestone and the developers has stated that this release will be the public release that can be used for home users and not for developers (like in the previous 4.0 release).
Many have said that KDE 4.0 is bad, and other said it's a promising KDE release. We will found out more about KDE 4.1 when it's released. Right now, they have released RC 1, which i predicted will be followed by RC 2 shortly, just to make sure all the major bugs have been fixed and no massive regression left.